Home / 38,191.88-57,244.08-20,676.44

Finding the Fourth Proportional to 38,191.88, 57,244.08 and 20,676.44

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Solution

The fourth proportional to 38,191.88, 57,244.08 and 20,676.44 is: 30,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,191.88 : 57,244.08 = 20,676.44 : x
  2. Step 2: Convert to fraction form
    38,191.88/57,244.08 = 20,676.44/x
  3. Step 3: Cross multiply
    38,191.88x = 57,244.08 × 20,676.44
  4. Step 4: Simplify right side
    38,191.88x = 1,183,603,785.48
  5. Step 5: Solve for x
    x = 1,183,603,785.48/38,191.88
  6. Step 6: Final answer
    x = 30,990.98

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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.