Home / 39,296.37-54,229.45-21,391.69

Finding the Fourth Proportional to 39,296.37, 54,229.45 and 21,391.69

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Solution

The fourth proportional to 39,296.37, 54,229.45 and 21,391.69 is: 29,520.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,296.37 : 54,229.45 = 21,391.69 : x
  2. Step 2: Convert to fraction form
    39,296.37/54,229.45 = 21,391.69/x
  3. Step 3: Cross multiply
    39,296.37x = 54,229.45 × 21,391.69
  4. Step 4: Simplify right side
    39,296.37x = 1,160,059,583.27
  5. Step 5: Solve for x
    x = 1,160,059,583.27/39,296.37
  6. Step 6: Final answer
    x = 29,520.78

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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.