Home / 28,791.20-43,186.80-11,248.73

Finding the Fourth Proportional to 28,791.20, 43,186.80 and 11,248.73

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Solution

The fourth proportional to 28,791.20, 43,186.80 and 11,248.73 is: 16,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,791.20 : 43,186.80 = 11,248.73 : x
  2. Step 2: Convert to fraction form
    28,791.20/43,186.80 = 11,248.73/x
  3. Step 3: Cross multiply
    28,791.20x = 43,186.80 × 11,248.73
  4. Step 4: Simplify right side
    28,791.20x = 485,796,652.76
  5. Step 5: Solve for x
    x = 485,796,652.76/28,791.20
  6. Step 6: Final answer
    x = 16,873.10

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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.