Home / 38,115.98-57,100.14-18,408.38

Finding the Fourth Proportional to 38,115.98, 57,100.14 and 18,408.38

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Solution

The fourth proportional to 38,115.98, 57,100.14 and 18,408.38 is: 27,576.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115.98 : 57,100.14 = 18,408.38 : x
  2. Step 2: Convert to fraction form
    38,115.98/57,100.14 = 18,408.38/x
  3. Step 3: Cross multiply
    38,115.98x = 57,100.14 × 18,408.38
  4. Step 4: Simplify right side
    38,115.98x = 1,051,120,789.67
  5. Step 5: Solve for x
    x = 1,051,120,789.67/38,115.98
  6. Step 6: Final answer
    x = 27,576.91

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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.