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Finding the Third Proportional to 18,469.90 and 38,528.79

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Solution

The third proportional to 18,469.90 and 38,528.79 is: 80,372.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,469.90 : 38,528.79 = 38,528.79 : x
  2. Step 2: Convert to fraction form
    18,469.90/38,528.79 = 38,528.79/x
  3. Step 3: Cross multiply
    18,469.90x = 38,528.79 × 38,528.79
  4. Step 4: Simplify right side
    18,469.90x = 1,484,467,586.62
  5. Step 5: Solve for x
    x = 1,484,467,586.62/18,469.90
  6. Step 6: Final answer
    x = 80,372.27

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.