Finding the Fourth Proportional to 25.87, 35.70 and 16.99
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Solution
The fourth proportional to 25.87, 35.70 and 16.99 is: 23.45
Step by Step Solution
- Step 1: Write the proportion equation
25.87 : 35.70 = 16.99 : x - Step 2: Convert to fraction form
25.87/35.70 = 16.99/x - Step 3: Cross multiply
25.87x = 35.70 × 16.99 - Step 4: Simplify right side
25.87x = 606.54 - Step 5: Solve for x
x = 606.54/25.87 - Step 6: Final answer
x = 23.45
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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.