Home / 38,138.80-57,207.58-11,843.56

Finding the Fourth Proportional to 38,138.80, 57,207.58 and 11,843.56

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Solution

The fourth proportional to 38,138.80, 57,207.58 and 11,843.56 is: 17,765.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,138.80 : 57,207.58 = 11,843.56 : x
  2. Step 2: Convert to fraction form
    38,138.80/57,207.58 = 11,843.56/x
  3. Step 3: Cross multiply
    38,138.80x = 57,207.58 × 11,843.56
  4. Step 4: Simplify right side
    38,138.80x = 677,541,406.18
  5. Step 5: Solve for x
    x = 677,541,406.18/38,138.80
  6. Step 6: Final answer
    x = 17,765.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.