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Finding the Third Proportional to 28,690 and 38,555

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Solution

The third proportional to 28,690 and 38,555 is: 51,812.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690 : 38,555 = 38,555 : x
  2. Step 2: Convert to fraction form
    28,690/38,555 = 38,555/x
  3. Step 3: Cross multiply
    28,690x = 38,555 × 38,555
  4. Step 4: Simplify right side
    28,690x = 1,486,488,025
  5. Step 5: Solve for x
    x = 1,486,488,025/28,690
  6. Step 6: Final answer
    x = 51,812.06

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.