Question

Find the fourth proportional of 6, 24 and 11.

• A. 28
• B. 21
• C. 44
• D. 36

Answer 1

Answer:

C. 44

a ∶ b ∶ ∶ c ∶ d ⇒ a/b = c/d ⇒ ad = bc ⇒ 6 × d = 24 × 11 ⇒ d = (24 × 11)/6 ⇒ d = 4 × 11 ⇒ d = 44