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Finding the Third Proportional to 18,934.31 and 29,399.91

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Solution

The third proportional to 18,934.31 and 29,399.91 is: 45,650.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.31 : 29,399.91 = 29,399.91 : x
  2. Step 2: Convert to fraction form
    18,934.31/29,399.91 = 29,399.91/x
  3. Step 3: Cross multiply
    18,934.31x = 29,399.91 × 29,399.91
  4. Step 4: Simplify right side
    18,934.31x = 864,354,487.51
  5. Step 5: Solve for x
    x = 864,354,487.51/18,934.31
  6. Step 6: Final answer
    x = 45,650.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.