Home / 39,984.28-55,179.38-22,078.22

Finding the Fourth Proportional to 39,984.28, 55,179.38 and 22,078.22

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Solution

The fourth proportional to 39,984.28, 55,179.38 and 22,078.22 is: 30,468.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,984.28 : 55,179.38 = 22,078.22 : x
  2. Step 2: Convert to fraction form
    39,984.28/55,179.38 = 22,078.22/x
  3. Step 3: Cross multiply
    39,984.28x = 55,179.38 × 22,078.22
  4. Step 4: Simplify right side
    39,984.28x = 1,218,262,456.60
  5. Step 5: Solve for x
    x = 1,218,262,456.60/39,984.28
  6. Step 6: Final answer
    x = 30,468.53

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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.