Home / 39,983.81-55,177.65-22,078.85

Finding the Fourth Proportional to 39,983.81, 55,177.65 and 22,078.85

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Solution

The fourth proportional to 39,983.81, 55,177.65 and 22,078.85 is: 30,468.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,983.81 : 55,177.65 = 22,078.85 : x
  2. Step 2: Convert to fraction form
    39,983.81/55,177.65 = 22,078.85/x
  3. Step 3: Cross multiply
    39,983.81x = 55,177.65 × 22,078.85
  4. Step 4: Simplify right side
    39,983.81x = 1,218,258,781.81
  5. Step 5: Solve for x
    x = 1,218,258,781.81/39,983.81
  6. Step 6: Final answer
    x = 30,468.81

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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.