Home / 28,791.57-43,193.16-12,151.62

Finding the Fourth Proportional to 28,791.57, 43,193.16 and 12,151.62

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Solution

The fourth proportional to 28,791.57, 43,193.16 and 12,151.62 is: 18,229.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,791.57 : 43,193.16 = 12,151.62 : x
  2. Step 2: Convert to fraction form
    28,791.57/43,193.16 = 12,151.62/x
  3. Step 3: Cross multiply
    28,791.57x = 43,193.16 × 12,151.62
  4. Step 4: Simplify right side
    28,791.57x = 524,866,866.92
  5. Step 5: Solve for x
    x = 524,866,866.92/28,791.57
  6. Step 6: Final answer
    x = 18,229.88

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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.