Home / 20,840.87-31,264.05-6,795.97

Finding the Fourth Proportional to 20,840.87, 31,264.05 and 6,795.97

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Solution

The fourth proportional to 20,840.87, 31,264.05 and 6,795.97 is: 10,194.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,840.87 : 31,264.05 = 6,795.97 : x
  2. Step 2: Convert to fraction form
    20,840.87/31,264.05 = 6,795.97/x
  3. Step 3: Cross multiply
    20,840.87x = 31,264.05 × 6,795.97
  4. Step 4: Simplify right side
    20,840.87x = 212,469,545.88
  5. Step 5: Solve for x
    x = 212,469,545.88/20,840.87
  6. Step 6: Final answer
    x = 10,194.85

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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.