Home / 20,849.80-31,276.68-5,856.88

Finding the Fourth Proportional to 20,849.80, 31,276.68 and 5,856.88

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Solution

The fourth proportional to 20,849.80, 31,276.68 and 5,856.88 is: 8,785.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.80 : 31,276.68 = 5,856.88 : x
  2. Step 2: Convert to fraction form
    20,849.80/31,276.68 = 5,856.88/x
  3. Step 3: Cross multiply
    20,849.80x = 31,276.68 × 5,856.88
  4. Step 4: Simplify right side
    20,849.80x = 183,183,761.56
  5. Step 5: Solve for x
    x = 183,183,761.56/20,849.80
  6. Step 6: Final answer
    x = 8,785.88

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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.