Finding the Fourth Proportional to 25.12, 37.70 and 14.99
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Solution
The fourth proportional to 25.12, 37.70 and 14.99 is: 22.50
Step by Step Solution
- Step 1: Write the proportion equation
25.12 : 37.70 = 14.99 : x - Step 2: Convert to fraction form
25.12/37.70 = 14.99/x - Step 3: Cross multiply
25.12x = 37.70 × 14.99 - Step 4: Simplify right side
25.12x = 565.12 - Step 5: Solve for x
x = 565.12/25.12 - Step 6: Final answer
x = 22.50
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.