Question
Download Solution PDFWhat is the third proportional to 28 and 112?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
First number = 28
Second number = 112
Formula used:
If a, b, and c are in proportion, then:
\(\dfrac{a}{b} = \dfrac{b}{c}\)
Third proportional (c) = \(\dfrac{b^2}{a}\)
Calculation:
Third proportional = \(\dfrac{b^2}{a}\)
⇒ c = \(\dfrac{112^2}{28}\)
⇒ c = \(\dfrac{12544}{28}\)
⇒ c = 448
∴ The third proportional is 448, and the correct answer is option (1).
Last updated on Jul 8, 2025
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