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Finding the Third Proportional to 18,538.88 and 40,861.13

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Solution

The third proportional to 18,538.88 and 40,861.13 is: 90,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.88 : 40,861.13 = 40,861.13 : x
  2. Step 2: Convert to fraction form
    18,538.88/40,861.13 = 40,861.13/x
  3. Step 3: Cross multiply
    18,538.88x = 40,861.13 × 40,861.13
  4. Step 4: Simplify right side
    18,538.88x = 1,669,631,536.27
  5. Step 5: Solve for x
    x = 1,669,631,536.27/18,538.88
  6. Step 6: Final answer
    x = 90,061.10

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.