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Finding the Third Proportional to 11,478 and 20,244

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Solution

The third proportional to 11,478 and 20,244 is: 35,704.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478 : 20,244 = 20,244 : x
  2. Step 2: Convert to fraction form
    11,478/20,244 = 20,244/x
  3. Step 3: Cross multiply
    11,478x = 20,244 × 20,244
  4. Step 4: Simplify right side
    11,478x = 409,819,536
  5. Step 5: Solve for x
    x = 409,819,536/11,478
  6. Step 6: Final answer
    x = 35,704.79

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.