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Finding the Third Proportional to 15,540 and 34,588

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Solution

The third proportional to 15,540 and 34,588 is: 76,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540 : 34,588 = 34,588 : x
  2. Step 2: Convert to fraction form
    15,540/34,588 = 34,588/x
  3. Step 3: Cross multiply
    15,540x = 34,588 × 34,588
  4. Step 4: Simplify right side
    15,540x = 1,196,329,744
  5. Step 5: Solve for x
    x = 1,196,329,744/15,540
  6. Step 6: Final answer
    x = 76,983.90

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.