Home / 20,680.44-31,021.11-5,889.83

Finding the Fourth Proportional to 20,680.44, 31,021.11 and 5,889.83

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Solution

The fourth proportional to 20,680.44, 31,021.11 and 5,889.83 is: 8,834.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680.44 : 31,021.11 = 5,889.83 : x
  2. Step 2: Convert to fraction form
    20,680.44/31,021.11 = 5,889.83/x
  3. Step 3: Cross multiply
    20,680.44x = 31,021.11 × 5,889.83
  4. Step 4: Simplify right side
    20,680.44x = 182,708,909.21
  5. Step 5: Solve for x
    x = 182,708,909.21/20,680.44
  6. Step 6: Final answer
    x = 8,834.87

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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.