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Finding the Third Proportional to 20,366.44 and 38,659.78

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Solution

The third proportional to 20,366.44 and 38,659.78 is: 73,384.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,366.44 : 38,659.78 = 38,659.78 : x
  2. Step 2: Convert to fraction form
    20,366.44/38,659.78 = 38,659.78/x
  3. Step 3: Cross multiply
    20,366.44x = 38,659.78 × 38,659.78
  4. Step 4: Simplify right side
    20,366.44x = 1,494,578,686.30
  5. Step 5: Solve for x
    x = 1,494,578,686.30/20,366.44
  6. Step 6: Final answer
    x = 73,384.39

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.