Home / 20,546.20-28,353.66-11,114.68

Finding the Fourth Proportional to 20,546.20, 28,353.66 and 11,114.68

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Solution

The fourth proportional to 20,546.20, 28,353.66 and 11,114.68 is: 15,338.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,546.20 : 28,353.66 = 11,114.68 : x
  2. Step 2: Convert to fraction form
    20,546.20/28,353.66 = 11,114.68/x
  3. Step 3: Cross multiply
    20,546.20x = 28,353.66 × 11,114.68
  4. Step 4: Simplify right side
    20,546.20x = 315,141,857.73
  5. Step 5: Solve for x
    x = 315,141,857.73/20,546.20
  6. Step 6: Final answer
    x = 15,338.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.