Home / 20,815.08-31,217.97-6,020.70

Finding the Fourth Proportional to 20,815.08, 31,217.97 and 6,020.70

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Solution

The fourth proportional to 20,815.08, 31,217.97 and 6,020.70 is: 9,029.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,815.08 : 31,217.97 = 6,020.70 : x
  2. Step 2: Convert to fraction form
    20,815.08/31,217.97 = 6,020.70/x
  3. Step 3: Cross multiply
    20,815.08x = 31,217.97 × 6,020.70
  4. Step 4: Simplify right side
    20,815.08x = 187,954,031.98
  5. Step 5: Solve for x
    x = 187,954,031.98/20,815.08
  6. Step 6: Final answer
    x = 9,029.71

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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.