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Finding the Third Proportional to 8,920.13 and 20,229.75

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Solution

The third proportional to 8,920.13 and 20,229.75 is: 45,878.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.13 : 20,229.75 = 20,229.75 : x
  2. Step 2: Convert to fraction form
    8,920.13/20,229.75 = 20,229.75/x
  3. Step 3: Cross multiply
    8,920.13x = 20,229.75 × 20,229.75
  4. Step 4: Simplify right side
    8,920.13x = 409,242,785.06
  5. Step 5: Solve for x
    x = 409,242,785.06/8,920.13
  6. Step 6: Final answer
    x = 45,878.59

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Why These Related Problems?

These problems maintain the same ratio (2.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.