Home / 31,413.44-47,121.24-15,822.56

Finding the Fourth Proportional to 31,413.44, 47,121.24 and 15,822.56

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Solution

The fourth proportional to 31,413.44, 47,121.24 and 15,822.56 is: 23,734.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,413.44 : 47,121.24 = 15,822.56 : x
  2. Step 2: Convert to fraction form
    31,413.44/47,121.24 = 15,822.56/x
  3. Step 3: Cross multiply
    31,413.44x = 47,121.24 × 15,822.56
  4. Step 4: Simplify right side
    31,413.44x = 745,578,411.57
  5. Step 5: Solve for x
    x = 745,578,411.57/31,413.44
  6. Step 6: Final answer
    x = 23,734.38

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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.