Home / 40,121.87-55,367.45-22,216.82

Finding the Fourth Proportional to 40,121.87, 55,367.45 and 22,216.82

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Solution

The fourth proportional to 40,121.87, 55,367.45 and 22,216.82 is: 30,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,121.87 : 55,367.45 = 22,216.82 : x
  2. Step 2: Convert to fraction form
    40,121.87/55,367.45 = 22,216.82/x
  3. Step 3: Cross multiply
    40,121.87x = 55,367.45 × 22,216.82
  4. Step 4: Simplify right side
    40,121.87x = 1,230,088,365.90
  5. Step 5: Solve for x
    x = 1,230,088,365.90/40,121.87
  6. Step 6: Final answer
    x = 30,658.80

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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.