Home / 40,439.54-55,805.80-22,042.79

Finding the Fourth Proportional to 40,439.54, 55,805.80 and 22,042.79

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Solution

The fourth proportional to 40,439.54, 55,805.80 and 22,042.79 is: 30,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,439.54 : 55,805.80 = 22,042.79 : x
  2. Step 2: Convert to fraction form
    40,439.54/55,805.80 = 22,042.79/x
  3. Step 3: Cross multiply
    40,439.54x = 55,805.80 × 22,042.79
  4. Step 4: Simplify right side
    40,439.54x = 1,230,115,487.98
  5. Step 5: Solve for x
    x = 1,230,115,487.98/40,439.54
  6. Step 6: Final answer
    x = 30,418.64

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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.