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Finding the Third Proportional to 18,193 and 39,971

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Solution

The third proportional to 18,193 and 39,971 is: 87,818.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,193 : 39,971 = 39,971 : x
  2. Step 2: Convert to fraction form
    18,193/39,971 = 39,971/x
  3. Step 3: Cross multiply
    18,193x = 39,971 × 39,971
  4. Step 4: Simplify right side
    18,193x = 1,597,680,841
  5. Step 5: Solve for x
    x = 1,597,680,841/18,193
  6. Step 6: Final answer
    x = 87,818.44

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.