Home / 38,200.80-57,301.20-10,120.80

Finding the Fourth Proportional to 38,200.80, 57,301.20 and 10,120.80

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Solution

The fourth proportional to 38,200.80, 57,301.20 and 10,120.80 is: 15,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,200.80 : 57,301.20 = 10,120.80 : x
  2. Step 2: Convert to fraction form
    38,200.80/57,301.20 = 10,120.80/x
  3. Step 3: Cross multiply
    38,200.80x = 57,301.20 × 10,120.80
  4. Step 4: Simplify right side
    38,200.80x = 579,933,984.96
  5. Step 5: Solve for x
    x = 579,933,984.96/38,200.80
  6. Step 6: Final answer
    x = 15,181.20

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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.