Home / 41,940.78-57,879.45-22,821.72

Finding the Fourth Proportional to 41,940.78, 57,879.45 and 22,821.72

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Solution

The fourth proportional to 41,940.78, 57,879.45 and 22,821.72 is: 31,494.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,940.78 : 57,879.45 = 22,821.72 : x
  2. Step 2: Convert to fraction form
    41,940.78/57,879.45 = 22,821.72/x
  3. Step 3: Cross multiply
    41,940.78x = 57,879.45 × 22,821.72
  4. Step 4: Simplify right side
    41,940.78x = 1,320,908,601.65
  5. Step 5: Solve for x
    x = 1,320,908,601.65/41,940.78
  6. Step 6: Final answer
    x = 31,494.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.