Home / 40,155.90-55,415.61-22,251.12

Finding the Fourth Proportional to 40,155.90, 55,415.61 and 22,251.12

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Solution

The fourth proportional to 40,155.90, 55,415.61 and 22,251.12 is: 30,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,155.90 : 55,415.61 = 22,251.12 : x
  2. Step 2: Convert to fraction form
    40,155.90/55,415.61 = 22,251.12/x
  3. Step 3: Cross multiply
    40,155.90x = 55,415.61 × 22,251.12
  4. Step 4: Simplify right side
    40,155.90x = 1,233,059,387.98
  5. Step 5: Solve for x
    x = 1,233,059,387.98/40,155.90
  6. Step 6: Final answer
    x = 30,706.80

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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.