Home / 28,940.90-43,413.05-11,171.66

Finding the Fourth Proportional to 28,940.90, 43,413.05 and 11,171.66

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Solution

The fourth proportional to 28,940.90, 43,413.05 and 11,171.66 is: 16,758.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,940.90 : 43,413.05 = 11,171.66 : x
  2. Step 2: Convert to fraction form
    28,940.90/43,413.05 = 11,171.66/x
  3. Step 3: Cross multiply
    28,940.90x = 43,413.05 × 11,171.66
  4. Step 4: Simplify right side
    28,940.90x = 484,995,561.24
  5. Step 5: Solve for x
    x = 484,995,561.24/28,940.90
  6. Step 6: Final answer
    x = 16,758.14

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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.