Home / 20,854.91-31,285.41-6,061.90

Finding the Fourth Proportional to 20,854.91, 31,285.41 and 6,061.90

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Solution

The fourth proportional to 20,854.91, 31,285.41 and 6,061.90 is: 9,093.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,854.91 : 31,285.41 = 6,061.90 : x
  2. Step 2: Convert to fraction form
    20,854.91/31,285.41 = 6,061.90/x
  3. Step 3: Cross multiply
    20,854.91x = 31,285.41 × 6,061.90
  4. Step 4: Simplify right side
    20,854.91x = 189,649,106.68
  5. Step 5: Solve for x
    x = 189,649,106.68/20,854.91
  6. Step 6: Final answer
    x = 9,093.74

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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.