Home / 38,179.61-57,255.68-13,212.88

Finding the Fourth Proportional to 38,179.61, 57,255.68 and 13,212.88

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Solution

The fourth proportional to 38,179.61, 57,255.68 and 13,212.88 is: 19,814.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,179.61 : 57,255.68 = 13,212.88 : x
  2. Step 2: Convert to fraction form
    38,179.61/57,255.68 = 13,212.88/x
  3. Step 3: Cross multiply
    38,179.61x = 57,255.68 × 13,212.88
  4. Step 4: Simplify right side
    38,179.61x = 756,512,319.05
  5. Step 5: Solve for x
    x = 756,512,319.05/38,179.61
  6. Step 6: Final answer
    x = 19,814.57

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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.