Home / 40,490.56-55,881.30-22,591.78

Finding the Fourth Proportional to 40,490.56, 55,881.30 and 22,591.78

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Solution

The fourth proportional to 40,490.56, 55,881.30 and 22,591.78 is: 31,179.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,490.56 : 55,881.30 = 22,591.78 : x
  2. Step 2: Convert to fraction form
    40,490.56/55,881.30 = 22,591.78/x
  3. Step 3: Cross multiply
    40,490.56x = 55,881.30 × 22,591.78
  4. Step 4: Simplify right side
    40,490.56x = 1,262,458,035.71
  5. Step 5: Solve for x
    x = 1,262,458,035.71/40,490.56
  6. Step 6: Final answer
    x = 31,179.07

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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.