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Finding the Third Proportional to 20,310 and 22,110

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Solution

The third proportional to 20,310 and 22,110 is: 24,069.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310 : 22,110 = 22,110 : x
  2. Step 2: Convert to fraction form
    20,310/22,110 = 22,110/x
  3. Step 3: Cross multiply
    20,310x = 22,110 × 22,110
  4. Step 4: Simplify right side
    20,310x = 488,852,100
  5. Step 5: Solve for x
    x = 488,852,100/20,310
  6. Step 6: Final answer
    x = 24,069.53

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.