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Finding the Third Proportional to 20,823 and 27,339

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Solution

The third proportional to 20,823 and 27,339 is: 35,894.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823 : 27,339 = 27,339 : x
  2. Step 2: Convert to fraction form
    20,823/27,339 = 27,339/x
  3. Step 3: Cross multiply
    20,823x = 27,339 × 27,339
  4. Step 4: Simplify right side
    20,823x = 747,420,921
  5. Step 5: Solve for x
    x = 747,420,921/20,823
  6. Step 6: Final answer
    x = 35,894.01

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.