Home / 28,267.30-39,007.33-15,517.97

Finding the Fourth Proportional to 28,267.30, 39,007.33 and 15,517.97

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Solution

The fourth proportional to 28,267.30, 39,007.33 and 15,517.97 is: 21,413.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,267.30 : 39,007.33 = 15,517.97 : x
  2. Step 2: Convert to fraction form
    28,267.30/39,007.33 = 15,517.97/x
  3. Step 3: Cross multiply
    28,267.30x = 39,007.33 × 15,517.97
  4. Step 4: Simplify right side
    28,267.30x = 605,314,576.72
  5. Step 5: Solve for x
    x = 605,314,576.72/28,267.30
  6. Step 6: Final answer
    x = 21,413.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.