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Finding the Third Proportional to 11,311 and 20,069

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Solution

The third proportional to 11,311 and 20,069 is: 35,608.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311 : 20,069 = 20,069 : x
  2. Step 2: Convert to fraction form
    11,311/20,069 = 20,069/x
  3. Step 3: Cross multiply
    11,311x = 20,069 × 20,069
  4. Step 4: Simplify right side
    11,311x = 402,764,761
  5. Step 5: Solve for x
    x = 402,764,761/11,311
  6. Step 6: Final answer
    x = 35,608.24

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.