Home / 39,982.06-55,176.11-22,078.20

Finding the Fourth Proportional to 39,982.06, 55,176.11 and 22,078.20

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Solution

The fourth proportional to 39,982.06, 55,176.11 and 22,078.20 is: 30,468.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,982.06 : 55,176.11 = 22,078.20 : x
  2. Step 2: Convert to fraction form
    39,982.06/55,176.11 = 22,078.20/x
  3. Step 3: Cross multiply
    39,982.06x = 55,176.11 × 22,078.20
  4. Step 4: Simplify right side
    39,982.06x = 1,218,189,191.80
  5. Step 5: Solve for x
    x = 1,218,189,191.80/39,982.06
  6. Step 6: Final answer
    x = 30,468.39

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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.