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Finding the Third Proportional to 18,902.25 and 39,359.25

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Solution

The third proportional to 18,902.25 and 39,359.25 is: 81,955.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902.25 : 39,359.25 = 39,359.25 : x
  2. Step 2: Convert to fraction form
    18,902.25/39,359.25 = 39,359.25/x
  3. Step 3: Cross multiply
    18,902.25x = 39,359.25 × 39,359.25
  4. Step 4: Simplify right side
    18,902.25x = 1,549,150,560.56
  5. Step 5: Solve for x
    x = 1,549,150,560.56/18,902.25
  6. Step 6: Final answer
    x = 81,955.88

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.