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Finding the Third Proportional to 18,510 and 29,439

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Solution

The third proportional to 18,510 and 29,439 is: 46,820.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,510 : 29,439 = 29,439 : x
  2. Step 2: Convert to fraction form
    18,510/29,439 = 29,439/x
  3. Step 3: Cross multiply
    18,510x = 29,439 × 29,439
  4. Step 4: Simplify right side
    18,510x = 866,654,721
  5. Step 5: Solve for x
    x = 866,654,721/18,510
  6. Step 6: Final answer
    x = 46,820.89

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.