Home / 40,960.46-61,451.42-12,879.38

Finding the Fourth Proportional to 40,960.46, 61,451.42 and 12,879.38

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Solution

The fourth proportional to 40,960.46, 61,451.42 and 12,879.38 is: 19,322.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,960.46 : 61,451.42 = 12,879.38 : x
  2. Step 2: Convert to fraction form
    40,960.46/61,451.42 = 12,879.38/x
  3. Step 3: Cross multiply
    40,960.46x = 61,451.42 × 12,879.38
  4. Step 4: Simplify right side
    40,960.46x = 791,456,189.72
  5. Step 5: Solve for x
    x = 791,456,189.72/40,960.46
  6. Step 6: Final answer
    x = 19,322.44

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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.