Home / 38,188.18-57,268.60-13,221.53

Finding the Fourth Proportional to 38,188.18, 57,268.60 and 13,221.53

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Solution

The fourth proportional to 38,188.18, 57,268.60 and 13,221.53 is: 19,827.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,188.18 : 57,268.60 = 13,221.53 : x
  2. Step 2: Convert to fraction form
    38,188.18/57,268.60 = 13,221.53/x
  3. Step 3: Cross multiply
    38,188.18x = 57,268.60 × 13,221.53
  4. Step 4: Simplify right side
    38,188.18x = 757,178,193.56
  5. Step 5: Solve for x
    x = 757,178,193.56/38,188.18
  6. Step 6: Final answer
    x = 19,827.56

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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.