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Finding the Third Proportional to 13,959 and 20,320.88

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Solution

The third proportional to 13,959 and 20,320.88 is: 29,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959 : 20,320.88 = 20,320.88 : x
  2. Step 2: Convert to fraction form
    13,959/20,320.88 = 20,320.88/x
  3. Step 3: Cross multiply
    13,959x = 20,320.88 × 20,320.88
  4. Step 4: Simplify right side
    13,959x = 412,937,960.77
  5. Step 5: Solve for x
    x = 412,937,960.77/13,959
  6. Step 6: Final answer
    x = 29,582.20

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.