Home / 39,406.54-54,383.11-22,640.62

Finding the Fourth Proportional to 39,406.54, 54,383.11 and 22,640.62

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Solution

The fourth proportional to 39,406.54, 54,383.11 and 22,640.62 is: 31,245.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,406.54 : 54,383.11 = 22,640.62 : x
  2. Step 2: Convert to fraction form
    39,406.54/54,383.11 = 22,640.62/x
  3. Step 3: Cross multiply
    39,406.54x = 54,383.11 × 22,640.62
  4. Step 4: Simplify right side
    39,406.54x = 1,231,267,327.93
  5. Step 5: Solve for x
    x = 1,231,267,327.93/39,406.54
  6. Step 6: Final answer
    x = 31,245.25

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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.