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Finding the Third Proportional to 15,105.75 and 17,463.75

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Solution

The third proportional to 15,105.75 and 17,463.75 is: 20,189.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,105.75 : 17,463.75 = 17,463.75 : x
  2. Step 2: Convert to fraction form
    15,105.75/17,463.75 = 17,463.75/x
  3. Step 3: Cross multiply
    15,105.75x = 17,463.75 × 17,463.75
  4. Step 4: Simplify right side
    15,105.75x = 304,982,564.06
  5. Step 5: Solve for x
    x = 304,982,564.06/15,105.75
  6. Step 6: Final answer
    x = 20,189.83

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Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.