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Finding the Third Proportional to 18,494 and 40,440

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Solution

The third proportional to 18,494 and 40,440 is: 88,428.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,494 : 40,440 = 40,440 : x
  2. Step 2: Convert to fraction form
    18,494/40,440 = 40,440/x
  3. Step 3: Cross multiply
    18,494x = 40,440 × 40,440
  4. Step 4: Simplify right side
    18,494x = 1,635,393,600
  5. Step 5: Solve for x
    x = 1,635,393,600/18,494
  6. Step 6: Final answer
    x = 88,428.33

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.