Home / 38,138.75-57,205.56-13,179.14

Finding the Fourth Proportional to 38,138.75, 57,205.56 and 13,179.14

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Solution

The fourth proportional to 38,138.75, 57,205.56 and 13,179.14 is: 19,767.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,138.75 : 57,205.56 = 13,179.14 : x
  2. Step 2: Convert to fraction form
    38,138.75/57,205.56 = 13,179.14/x
  3. Step 3: Cross multiply
    38,138.75x = 57,205.56 × 13,179.14
  4. Step 4: Simplify right side
    38,138.75x = 753,920,259.98
  5. Step 5: Solve for x
    x = 753,920,259.98/38,138.75
  6. Step 6: Final answer
    x = 19,767.83

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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.