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Finding the Third Proportional to 20,894.50 and 43,517

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Solution

The third proportional to 20,894.50 and 43,517 is: 90,632.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894.50 : 43,517 = 43,517 : x
  2. Step 2: Convert to fraction form
    20,894.50/43,517 = 43,517/x
  3. Step 3: Cross multiply
    20,894.50x = 43,517 × 43,517
  4. Step 4: Simplify right side
    20,894.50x = 1,893,729,289
  5. Step 5: Solve for x
    x = 1,893,729,289/20,894.50
  6. Step 6: Final answer
    x = 90,632.91

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.