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Finding the Third Proportional to 15,500 and 17,804

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Solution

The third proportional to 15,500 and 17,804 is: 20,450.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,500 : 17,804 = 17,804 : x
  2. Step 2: Convert to fraction form
    15,500/17,804 = 17,804/x
  3. Step 3: Cross multiply
    15,500x = 17,804 × 17,804
  4. Step 4: Simplify right side
    15,500x = 316,982,416
  5. Step 5: Solve for x
    x = 316,982,416/15,500
  6. Step 6: Final answer
    x = 20,450.48

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.