Question
Find the fourth term of the proportion whose first, second, and third terms are $18, 27,$ and $32$ respectively.
✓
Answer
Let the fourth term $=x$
$18: 27:: 32: x $
$\Rightarrow 18 \times x=27 \times 32$
$\Rightarrow x=\frac{27 \times 32}{18}=3 \times 16=48$
Fourth term $=48$
$18: 27:: 32: x $
$\Rightarrow 18 \times x=27 \times 32$
$\Rightarrow x=\frac{27 \times 32}{18}=3 \times 16=48$
Fourth term $=48$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
An electronic device makes a beep after every 15 minutes. Another device makes a beep after every 20 minutes. They beeped together at 10 a.m. At what time will they make the next beep together?
Estimate each of the following products by rounding off each number to the nearest ten : (63 x 57)
Subtract $3 y^2-5 y-4$ from the sum of $y-5 y^2+1$ and $3 y+4 y^2-5$.
→Find the value of x in the following proportion : $36: 81:: x: 63$
→Estimate the sum of the pair of numbers to the nearest ten:
78 and 18
78 and 18
Find the complement of 0.4 times of 130°.
Write the numeral of the following : 8,08,808
Express as a fraction in its lowest terms: 125%
Find the reciprocal of : $\frac{5}{9}$
→Measure the angles using protractor :
