Home / 38,158.11-57,239.73-13,200.57

Finding the Fourth Proportional to 38,158.11, 57,239.73 and 13,200.57

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Solution

The fourth proportional to 38,158.11, 57,239.73 and 13,200.57 is: 19,801.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,158.11 : 57,239.73 = 13,200.57 : x
  2. Step 2: Convert to fraction form
    38,158.11/57,239.73 = 13,200.57/x
  3. Step 3: Cross multiply
    38,158.11x = 57,239.73 × 13,200.57
  4. Step 4: Simplify right side
    38,158.11x = 755,597,062.65
  5. Step 5: Solve for x
    x = 755,597,062.65/38,158.11
  6. Step 6: Final answer
    x = 19,801.74

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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.