Home / 20,941.32-31,413.51-7,793.70

Finding the Fourth Proportional to 20,941.32, 31,413.51 and 7,793.70

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Solution

The fourth proportional to 20,941.32, 31,413.51 and 7,793.70 is: 11,691.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.32 : 31,413.51 = 7,793.70 : x
  2. Step 2: Convert to fraction form
    20,941.32/31,413.51 = 7,793.70/x
  3. Step 3: Cross multiply
    20,941.32x = 31,413.51 × 7,793.70
  4. Step 4: Simplify right side
    20,941.32x = 244,827,472.89
  5. Step 5: Solve for x
    x = 244,827,472.89/20,941.32
  6. Step 6: Final answer
    x = 11,691.12

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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.