Home / 20,546.28-28,353.92-11,114.84

Finding the Fourth Proportional to 20,546.28, 28,353.92 and 11,114.84

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Solution

The fourth proportional to 20,546.28, 28,353.92 and 11,114.84 is: 15,338.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,546.28 : 28,353.92 = 11,114.84 : x
  2. Step 2: Convert to fraction form
    20,546.28/28,353.92 = 11,114.84/x
  3. Step 3: Cross multiply
    20,546.28x = 28,353.92 × 11,114.84
  4. Step 4: Simplify right side
    20,546.28x = 315,149,299.48
  5. Step 5: Solve for x
    x = 315,149,299.48/20,546.28
  6. Step 6: Final answer
    x = 15,338.51

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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.