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Finding the Third Proportional to 18,085 and 27,947

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Solution

The third proportional to 18,085 and 27,947 is: 43,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,085 : 27,947 = 27,947 : x
  2. Step 2: Convert to fraction form
    18,085/27,947 = 27,947/x
  3. Step 3: Cross multiply
    18,085x = 27,947 × 27,947
  4. Step 4: Simplify right side
    18,085x = 781,034,809
  5. Step 5: Solve for x
    x = 781,034,809/18,085
  6. Step 6: Final answer
    x = 43,186.88

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.