Home / 20,011.60-29,974.20-17,822.80

Finding the Fourth Proportional to 20,011.60, 29,974.20 and 17,822.80

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Solution

The fourth proportional to 20,011.60, 29,974.20 and 17,822.80 is: 26,695.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.60 : 29,974.20 = 17,822.80 : x
  2. Step 2: Convert to fraction form
    20,011.60/29,974.20 = 17,822.80/x
  3. Step 3: Cross multiply
    20,011.60x = 29,974.20 × 17,822.80
  4. Step 4: Simplify right side
    20,011.60x = 534,224,171.76
  5. Step 5: Solve for x
    x = 534,224,171.76/20,011.60
  6. Step 6: Final answer
    x = 26,695.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.