Question

Find the second term of the proportion whose first, third, and fourth terms are 9, 8, and 24 respectively.

• A. 25
• B. 32
• C. 27
• D. 23

Answer 1

The correct option is C 27

First term = 9

Third term = 8

Fourth term = 24

Let the second term be x

9:x :: 8:24

⇒ x × 8 = 9 × 24

⇒ x = $\frac{9\times 24}{8}$

⇒ x = $\frac{216}{8}$

⇒ x = 27

Therefore, the second term is 27.