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Finding the Third Proportional to 15,915 and 34,134

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Solution

The third proportional to 15,915 and 34,134 is: 73,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915 : 34,134 = 34,134 : x
  2. Step 2: Convert to fraction form
    15,915/34,134 = 34,134/x
  3. Step 3: Cross multiply
    15,915x = 34,134 × 34,134
  4. Step 4: Simplify right side
    15,915x = 1,165,129,956
  5. Step 5: Solve for x
    x = 1,165,129,956/15,915
  6. Step 6: Final answer
    x = 73,209.55

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.