Home / 40,105.95-55,346.70-22,202.61

Finding the Fourth Proportional to 40,105.95, 55,346.70 and 22,202.61

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Solution

The fourth proportional to 40,105.95, 55,346.70 and 22,202.61 is: 30,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,105.95 : 55,346.70 = 22,202.61 : x
  2. Step 2: Convert to fraction form
    40,105.95/55,346.70 = 22,202.61/x
  3. Step 3: Cross multiply
    40,105.95x = 55,346.70 × 22,202.61
  4. Step 4: Simplify right side
    40,105.95x = 1,228,841,194.89
  5. Step 5: Solve for x
    x = 1,228,841,194.89/40,105.95
  6. Step 6: Final answer
    x = 30,639.87

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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.