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Finding the Third Proportional to 18,469.13 and 40,278.38

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Solution

The third proportional to 18,469.13 and 40,278.38 is: 87,841.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,469.13 : 40,278.38 = 40,278.38 : x
  2. Step 2: Convert to fraction form
    18,469.13/40,278.38 = 40,278.38/x
  3. Step 3: Cross multiply
    18,469.13x = 40,278.38 × 40,278.38
  4. Step 4: Simplify right side
    18,469.13x = 1,622,347,492.64
  5. Step 5: Solve for x
    x = 1,622,347,492.64/18,469.13
  6. Step 6: Final answer
    x = 87,841.06

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.