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Finding the Third Proportional to 7,042.57 and 15,288.75

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Solution

The third proportional to 7,042.57 and 15,288.75 is: 33,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.57 : 15,288.75 = 15,288.75 : x
  2. Step 2: Convert to fraction form
    7,042.57/15,288.75 = 15,288.75/x
  3. Step 3: Cross multiply
    7,042.57x = 15,288.75 × 15,288.75
  4. Step 4: Simplify right side
    7,042.57x = 233,745,876.56
  5. Step 5: Solve for x
    x = 233,745,876.56/7,042.57
  6. Step 6: Final answer
    x = 33,190.42

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.