Home / 40,078.89-55,304.64-22,171.05

Finding the Fourth Proportional to 40,078.89, 55,304.64 and 22,171.05

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Solution

The fourth proportional to 40,078.89, 55,304.64 and 22,171.05 is: 30,593.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,078.89 : 55,304.64 = 22,171.05 : x
  2. Step 2: Convert to fraction form
    40,078.89/55,304.64 = 22,171.05/x
  3. Step 3: Cross multiply
    40,078.89x = 55,304.64 × 22,171.05
  4. Step 4: Simplify right side
    40,078.89x = 1,226,161,938.67
  5. Step 5: Solve for x
    x = 1,226,161,938.67/40,078.89
  6. Step 6: Final answer
    x = 30,593.71

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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.