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Finding the Third Proportional to 10,243.13 and 15,307.31

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Solution

The third proportional to 10,243.13 and 15,307.31 is: 22,875.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,243.13 : 15,307.31 = 15,307.31 : x
  2. Step 2: Convert to fraction form
    10,243.13/15,307.31 = 15,307.31/x
  3. Step 3: Cross multiply
    10,243.13x = 15,307.31 × 15,307.31
  4. Step 4: Simplify right side
    10,243.13x = 234,313,815.97
  5. Step 5: Solve for x
    x = 234,313,815.97/10,243.13
  6. Step 6: Final answer
    x = 22,875.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.