Home / 28,850.85-43,268.85-11,320.83

Finding the Fourth Proportional to 28,850.85, 43,268.85 and 11,320.83

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Solution

The fourth proportional to 28,850.85, 43,268.85 and 11,320.83 is: 16,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,850.85 : 43,268.85 = 11,320.83 : x
  2. Step 2: Convert to fraction form
    28,850.85/43,268.85 = 11,320.83/x
  3. Step 3: Cross multiply
    28,850.85x = 43,268.85 × 11,320.83
  4. Step 4: Simplify right side
    28,850.85x = 489,839,295.15
  5. Step 5: Solve for x
    x = 489,839,295.15/28,850.85
  6. Step 6: Final answer
    x = 16,978.33

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1.5x scale

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.