Home / 28,900.80-43,363.62-12,272.04

Finding the Fourth Proportional to 28,900.80, 43,363.62 and 12,272.04

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Solution

The fourth proportional to 28,900.80, 43,363.62 and 12,272.04 is: 18,413.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.80 : 43,363.62 = 12,272.04 : x
  2. Step 2: Convert to fraction form
    28,900.80/43,363.62 = 12,272.04/x
  3. Step 3: Cross multiply
    28,900.80x = 43,363.62 × 12,272.04
  4. Step 4: Simplify right side
    28,900.80x = 532,160,079.18
  5. Step 5: Solve for x
    x = 532,160,079.18/28,900.80
  6. Step 6: Final answer
    x = 18,413.33

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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.