Home / 40,105.89-55,341.32-22,199.85

Finding the Fourth Proportional to 40,105.89, 55,341.32 and 22,199.85

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Solution

The fourth proportional to 40,105.89, 55,341.32 and 22,199.85 is: 30,633.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,105.89 : 55,341.32 = 22,199.85 : x
  2. Step 2: Convert to fraction form
    40,105.89/55,341.32 = 22,199.85/x
  3. Step 3: Cross multiply
    40,105.89x = 55,341.32 × 22,199.85
  4. Step 4: Simplify right side
    40,105.89x = 1,228,568,891.80
  5. Step 5: Solve for x
    x = 1,228,568,891.80/40,105.89
  6. Step 6: Final answer
    x = 30,633.13

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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.