Home / 40,385.99-55,730.12-22,480.54

Finding the Fourth Proportional to 40,385.99, 55,730.12 and 22,480.54

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Solution

The fourth proportional to 40,385.99, 55,730.12 and 22,480.54 is: 31,021.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,385.99 : 55,730.12 = 22,480.54 : x
  2. Step 2: Convert to fraction form
    40,385.99/55,730.12 = 22,480.54/x
  3. Step 3: Cross multiply
    40,385.99x = 55,730.12 × 22,480.54
  4. Step 4: Simplify right side
    40,385.99x = 1,252,843,191.86
  5. Step 5: Solve for x
    x = 1,252,843,191.86/40,385.99
  6. Step 6: Final answer
    x = 31,021.73

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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.