Home / 38,408.28-57,519.54-31,785.72

Finding the Fourth Proportional to 38,408.28, 57,519.54 and 31,785.72

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Solution

The fourth proportional to 38,408.28, 57,519.54 and 31,785.72 is: 47,601.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,408.28 : 57,519.54 = 31,785.72 : x
  2. Step 2: Convert to fraction form
    38,408.28/57,519.54 = 31,785.72/x
  3. Step 3: Cross multiply
    38,408.28x = 57,519.54 × 31,785.72
  4. Step 4: Simplify right side
    38,408.28x = 1,828,299,992.97
  5. Step 5: Solve for x
    x = 1,828,299,992.97/38,408.28
  6. Step 6: Final answer
    x = 47,601.71

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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.