Home / 31,414.92-43,362.69-20,114.85

Finding the Fourth Proportional to 31,414.92, 43,362.69 and 20,114.85

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Solution

The fourth proportional to 31,414.92, 43,362.69 and 20,114.85 is: 27,764.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,414.92 : 43,362.69 = 20,114.85 : x
  2. Step 2: Convert to fraction form
    31,414.92/43,362.69 = 20,114.85/x
  3. Step 3: Cross multiply
    31,414.92x = 43,362.69 × 20,114.85
  4. Step 4: Simplify right side
    31,414.92x = 872,234,004.95
  5. Step 5: Solve for x
    x = 872,234,004.95/31,414.92
  6. Step 6: Final answer
    x = 27,764.96

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1.5x scale

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.