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Finding the Third Proportional to 15,907 and 21,601

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Solution

The third proportional to 15,907 and 21,601 is: 29,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,907 : 21,601 = 21,601 : x
  2. Step 2: Convert to fraction form
    15,907/21,601 = 21,601/x
  3. Step 3: Cross multiply
    15,907x = 21,601 × 21,601
  4. Step 4: Simplify right side
    15,907x = 466,603,201
  5. Step 5: Solve for x
    x = 466,603,201/15,907
  6. Step 6: Final answer
    x = 29,333.20

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.