Home / 38,502.20-57,785.70-18,797.60

Finding the Fourth Proportional to 38,502.20, 57,785.70 and 18,797.60

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Solution

The fourth proportional to 38,502.20, 57,785.70 and 18,797.60 is: 28,212.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,502.20 : 57,785.70 = 18,797.60 : x
  2. Step 2: Convert to fraction form
    38,502.20/57,785.70 = 18,797.60/x
  3. Step 3: Cross multiply
    38,502.20x = 57,785.70 × 18,797.60
  4. Step 4: Simplify right side
    38,502.20x = 1,086,232,474.32
  5. Step 5: Solve for x
    x = 1,086,232,474.32/38,502.20
  6. Step 6: Final answer
    x = 28,212.22

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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.