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Finding the Third Proportional to 15,129 and 23,331

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Solution

The third proportional to 15,129 and 23,331 is: 35,979.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129 : 23,331 = 23,331 : x
  2. Step 2: Convert to fraction form
    15,129/23,331 = 23,331/x
  3. Step 3: Cross multiply
    15,129x = 23,331 × 23,331
  4. Step 4: Simplify right side
    15,129x = 544,335,561
  5. Step 5: Solve for x
    x = 544,335,561/15,129
  6. Step 6: Final answer
    x = 35,979.61

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.