Home / 41,383.64-57,138-38,739.80

Finding the Fourth Proportional to 41,383.64, 57,138 and 38,739.80

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Solution

The fourth proportional to 41,383.64, 57,138 and 38,739.80 is: 53,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,383.64 : 57,138 = 38,739.80 : x
  2. Step 2: Convert to fraction form
    41,383.64/57,138 = 38,739.80/x
  3. Step 3: Cross multiply
    41,383.64x = 57,138 × 38,739.80
  4. Step 4: Simplify right side
    41,383.64x = 2,213,514,692.40
  5. Step 5: Solve for x
    x = 2,213,514,692.40/41,383.64
  6. Step 6: Final answer
    x = 53,487.68

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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.