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Finding the Third Proportional to 15.29 and 25.55

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Solution

The third proportional to 15.29 and 25.55 is: 42.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.29 : 25.55 = 25.55 : x
  2. Step 2: Convert to fraction form
    15.29/25.55 = 25.55/x
  3. Step 3: Cross multiply
    15.29x = 25.55 × 25.55
  4. Step 4: Simplify right side
    15.29x = 652.79
  5. Step 5: Solve for x
    x = 652.79/15.29
  6. Step 6: Final answer
    x = 42.69

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.