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Finding the Third Proportional to 20,479.50 and 43,911

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Solution

The third proportional to 20,479.50 and 43,911 is: 94,151.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,479.50 : 43,911 = 43,911 : x
  2. Step 2: Convert to fraction form
    20,479.50/43,911 = 43,911/x
  3. Step 3: Cross multiply
    20,479.50x = 43,911 × 43,911
  4. Step 4: Simplify right side
    20,479.50x = 1,928,175,921
  5. Step 5: Solve for x
    x = 1,928,175,921/20,479.50
  6. Step 6: Final answer
    x = 94,151.51

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.