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Finding the Third Proportional to 18,805 and 27,559

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Solution

The third proportional to 18,805 and 27,559 is: 40,388.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805 : 27,559 = 27,559 : x
  2. Step 2: Convert to fraction form
    18,805/27,559 = 27,559/x
  3. Step 3: Cross multiply
    18,805x = 27,559 × 27,559
  4. Step 4: Simplify right side
    18,805x = 759,498,481
  5. Step 5: Solve for x
    x = 759,498,481/18,805
  6. Step 6: Final answer
    x = 40,388.11

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.