Home / 31,190.28-46,787.79-10,413.78

Finding the Fourth Proportional to 31,190.28, 46,787.79 and 10,413.78

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Solution

The fourth proportional to 31,190.28, 46,787.79 and 10,413.78 is: 15,621.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,190.28 : 46,787.79 = 10,413.78 : x
  2. Step 2: Convert to fraction form
    31,190.28/46,787.79 = 10,413.78/x
  3. Step 3: Cross multiply
    31,190.28x = 46,787.79 × 10,413.78
  4. Step 4: Simplify right side
    31,190.28x = 487,237,751.75
  5. Step 5: Solve for x
    x = 487,237,751.75/31,190.28
  6. Step 6: Final answer
    x = 15,621.46

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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.