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Finding the Third Proportional to 18,084 and 39,558

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Solution

The third proportional to 18,084 and 39,558 is: 86,531.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,084 : 39,558 = 39,558 : x
  2. Step 2: Convert to fraction form
    18,084/39,558 = 39,558/x
  3. Step 3: Cross multiply
    18,084x = 39,558 × 39,558
  4. Step 4: Simplify right side
    18,084x = 1,564,835,364
  5. Step 5: Solve for x
    x = 1,564,835,364/18,084
  6. Step 6: Final answer
    x = 86,531.48

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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.