Finding the Fourth Proportional to 25.90, 35.74 and 14.99
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Solution
The fourth proportional to 25.90, 35.74 and 14.99 is: 20.69
Step by Step Solution
- Step 1: Write the proportion equation
25.90 : 35.74 = 14.99 : x - Step 2: Convert to fraction form
25.90/35.74 = 14.99/x - Step 3: Cross multiply
25.90x = 35.74 × 14.99 - Step 4: Simplify right side
25.90x = 535.74 - Step 5: Solve for x
x = 535.74/25.90 - Step 6: Final answer
x = 20.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.