Home / 38,209.20-57,312.42-10,129.50

Finding the Fourth Proportional to 38,209.20, 57,312.42 and 10,129.50

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Solution

The fourth proportional to 38,209.20, 57,312.42 and 10,129.50 is: 15,193.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,209.20 : 57,312.42 = 10,129.50 : x
  2. Step 2: Convert to fraction form
    38,209.20/57,312.42 = 10,129.50/x
  3. Step 3: Cross multiply
    38,209.20x = 57,312.42 × 10,129.50
  4. Step 4: Simplify right side
    38,209.20x = 580,546,158.39
  5. Step 5: Solve for x
    x = 580,546,158.39/38,209.20
  6. Step 6: Final answer
    x = 15,193.88

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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.