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Finding the Third Proportional to 21,249 and 29,727

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Solution

The third proportional to 21,249 and 29,727 is: 41,587.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249 : 29,727 = 29,727 : x
  2. Step 2: Convert to fraction form
    21,249/29,727 = 29,727/x
  3. Step 3: Cross multiply
    21,249x = 29,727 × 29,727
  4. Step 4: Simplify right side
    21,249x = 883,694,529
  5. Step 5: Solve for x
    x = 883,694,529/21,249
  6. Step 6: Final answer
    x = 41,587.58

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.