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Finding the Third Proportional to 18,138 and 24,405

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Solution

The third proportional to 18,138 and 24,405 is: 32,837.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138 : 24,405 = 24,405 : x
  2. Step 2: Convert to fraction form
    18,138/24,405 = 24,405/x
  3. Step 3: Cross multiply
    18,138x = 24,405 × 24,405
  4. Step 4: Simplify right side
    18,138x = 595,604,025
  5. Step 5: Solve for x
    x = 595,604,025/18,138
  6. Step 6: Final answer
    x = 32,837.36

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.