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Finding the Third Proportional to 21,302 and 29,792

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Solution

The third proportional to 21,302 and 29,792 is: 41,665.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302 : 29,792 = 29,792 : x
  2. Step 2: Convert to fraction form
    21,302/29,792 = 29,792/x
  3. Step 3: Cross multiply
    21,302x = 29,792 × 29,792
  4. Step 4: Simplify right side
    21,302x = 887,563,264
  5. Step 5: Solve for x
    x = 887,563,264/21,302
  6. Step 6: Final answer
    x = 41,665.72

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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.