Home / 40,007.16-55,213.11-22,103.73

Finding the Fourth Proportional to 40,007.16, 55,213.11 and 22,103.73

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Solution

The fourth proportional to 40,007.16, 55,213.11 and 22,103.73 is: 30,504.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,007.16 : 55,213.11 = 22,103.73 : x
  2. Step 2: Convert to fraction form
    40,007.16/55,213.11 = 22,103.73/x
  3. Step 3: Cross multiply
    40,007.16x = 55,213.11 × 22,103.73
  4. Step 4: Simplify right side
    40,007.16x = 1,220,415,675.90
  5. Step 5: Solve for x
    x = 1,220,415,675.90/40,007.16
  6. Step 6: Final answer
    x = 30,504.93

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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.