Home / 20,760.28-31,137.05-5,965.83

Finding the Fourth Proportional to 20,760.28, 31,137.05 and 5,965.83

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Solution

The fourth proportional to 20,760.28, 31,137.05 and 5,965.83 is: 8,947.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760.28 : 31,137.05 = 5,965.83 : x
  2. Step 2: Convert to fraction form
    20,760.28/31,137.05 = 5,965.83/x
  3. Step 3: Cross multiply
    20,760.28x = 31,137.05 × 5,965.83
  4. Step 4: Simplify right side
    20,760.28x = 185,758,361.92
  5. Step 5: Solve for x
    x = 185,758,361.92/20,760.28
  6. Step 6: Final answer
    x = 8,947.78

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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.