Home / 20,811.08-31,211.97-6,016.70

Finding the Fourth Proportional to 20,811.08, 31,211.97 and 6,016.70

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Solution

The fourth proportional to 20,811.08, 31,211.97 and 6,016.70 is: 9,023.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811.08 : 31,211.97 = 6,016.70 : x
  2. Step 2: Convert to fraction form
    20,811.08/31,211.97 = 6,016.70/x
  3. Step 3: Cross multiply
    20,811.08x = 31,211.97 × 6,016.70
  4. Step 4: Simplify right side
    20,811.08x = 187,793,059.90
  5. Step 5: Solve for x
    x = 187,793,059.90/20,811.08
  6. Step 6: Final answer
    x = 9,023.71

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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.