Home / 38,371.70-57,560.38-13,408.86

Finding the Fourth Proportional to 38,371.70, 57,560.38 and 13,408.86

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Solution

The fourth proportional to 38,371.70, 57,560.38 and 13,408.86 is: 20,114.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,371.70 : 57,560.38 = 13,408.86 : x
  2. Step 2: Convert to fraction form
    38,371.70/57,560.38 = 13,408.86/x
  3. Step 3: Cross multiply
    38,371.70x = 57,560.38 × 13,408.86
  4. Step 4: Simplify right side
    38,371.70x = 771,819,076.97
  5. Step 5: Solve for x
    x = 771,819,076.97/38,371.70
  6. Step 6: Final answer
    x = 20,114.28

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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.