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Finding the Third Proportional to 20,375 and 43,203

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Solution

The third proportional to 20,375 and 43,203 is: 91,607.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375 : 43,203 = 43,203 : x
  2. Step 2: Convert to fraction form
    20,375/43,203 = 43,203/x
  3. Step 3: Cross multiply
    20,375x = 43,203 × 43,203
  4. Step 4: Simplify right side
    20,375x = 1,866,499,209
  5. Step 5: Solve for x
    x = 1,866,499,209/20,375
  6. Step 6: Final answer
    x = 91,607.32

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.