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Finding the Third Proportional to 18,123 and 27,520.50

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Solution

The third proportional to 18,123 and 27,520.50 is: 41,790.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123 : 27,520.50 = 27,520.50 : x
  2. Step 2: Convert to fraction form
    18,123/27,520.50 = 27,520.50/x
  3. Step 3: Cross multiply
    18,123x = 27,520.50 × 27,520.50
  4. Step 4: Simplify right side
    18,123x = 757,377,920.25
  5. Step 5: Solve for x
    x = 757,377,920.25/18,123
  6. Step 6: Final answer
    x = 41,790.98

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.