Home / 40,045.15-55,261.33-22,139.70

Finding the Fourth Proportional to 40,045.15, 55,261.33 and 22,139.70

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Solution

The fourth proportional to 40,045.15, 55,261.33 and 22,139.70 is: 30,552.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,045.15 : 55,261.33 = 22,139.70 : x
  2. Step 2: Convert to fraction form
    40,045.15/55,261.33 = 22,139.70/x
  3. Step 3: Cross multiply
    40,045.15x = 55,261.33 × 22,139.70
  4. Step 4: Simplify right side
    40,045.15x = 1,223,469,267.80
  5. Step 5: Solve for x
    x = 1,223,469,267.80/40,045.15
  6. Step 6: Final answer
    x = 30,552.25

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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.