Home / 40,078.89-55,304.07-22,171.44

Finding the Fourth Proportional to 40,078.89, 55,304.07 and 22,171.44

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Solution

The fourth proportional to 40,078.89, 55,304.07 and 22,171.44 is: 30,593.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,078.89 : 55,304.07 = 22,171.44 : x
  2. Step 2: Convert to fraction form
    40,078.89/55,304.07 = 22,171.44/x
  3. Step 3: Cross multiply
    40,078.89x = 55,304.07 × 22,171.44
  4. Step 4: Simplify right side
    40,078.89x = 1,226,170,869.76
  5. Step 5: Solve for x
    x = 1,226,170,869.76/40,078.89
  6. Step 6: Final answer
    x = 30,593.93

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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.