Home / 28,791.72-43,193.48-12,151.76

Finding the Fourth Proportional to 28,791.72, 43,193.48 and 12,151.76

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Solution

The fourth proportional to 28,791.72, 43,193.48 and 12,151.76 is: 18,230.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,791.72 : 43,193.48 = 12,151.76 : x
  2. Step 2: Convert to fraction form
    28,791.72/43,193.48 = 12,151.76/x
  3. Step 3: Cross multiply
    28,791.72x = 43,193.48 × 12,151.76
  4. Step 4: Simplify right side
    28,791.72x = 524,876,525.80
  5. Step 5: Solve for x
    x = 524,876,525.80/28,791.72
  6. Step 6: Final answer
    x = 18,230.12

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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.