Home / 39,386.92-54,365.19-22,400.32

Finding the Fourth Proportional to 39,386.92, 54,365.19 and 22,400.32

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Solution

The fourth proportional to 39,386.92, 54,365.19 and 22,400.32 is: 30,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,386.92 : 54,365.19 = 22,400.32 : x
  2. Step 2: Convert to fraction form
    39,386.92/54,365.19 = 22,400.32/x
  3. Step 3: Cross multiply
    39,386.92x = 54,365.19 × 22,400.32
  4. Step 4: Simplify right side
    39,386.92x = 1,217,797,652.86
  5. Step 5: Solve for x
    x = 1,217,797,652.86/39,386.92
  6. Step 6: Final answer
    x = 30,918.83

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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.