Home / 38,318.18-57,402.51-21,627.72

Finding the Fourth Proportional to 38,318.18, 57,402.51 and 21,627.72

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Solution

The fourth proportional to 38,318.18, 57,402.51 and 21,627.72 is: 32,399.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,318.18 : 57,402.51 = 21,627.72 : x
  2. Step 2: Convert to fraction form
    38,318.18/57,402.51 = 21,627.72/x
  3. Step 3: Cross multiply
    38,318.18x = 57,402.51 × 21,627.72
  4. Step 4: Simplify right side
    38,318.18x = 1,241,485,413.58
  5. Step 5: Solve for x
    x = 1,241,485,413.58/38,318.18
  6. Step 6: Final answer
    x = 32,399.39

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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.