Home / 28,691.20-43,036.83-8,969.86

Finding the Fourth Proportional to 28,691.20, 43,036.83 and 8,969.86

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Solution

The fourth proportional to 28,691.20, 43,036.83 and 8,969.86 is: 13,454.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.20 : 43,036.83 = 8,969.86 : x
  2. Step 2: Convert to fraction form
    28,691.20/43,036.83 = 8,969.86/x
  3. Step 3: Cross multiply
    28,691.20x = 43,036.83 × 8,969.86
  4. Step 4: Simplify right side
    28,691.20x = 386,034,339.94
  5. Step 5: Solve for x
    x = 386,034,339.94/28,691.20
  6. Step 6: Final answer
    x = 13,454.80

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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.