Home / 28,691.06-43,036.59-8,969.79

Finding the Fourth Proportional to 28,691.06, 43,036.59 and 8,969.79

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Solution

The fourth proportional to 28,691.06, 43,036.59 and 8,969.79 is: 13,454.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.06 : 43,036.59 = 8,969.79 : x
  2. Step 2: Convert to fraction form
    28,691.06/43,036.59 = 8,969.79/x
  3. Step 3: Cross multiply
    28,691.06x = 43,036.59 × 8,969.79
  4. Step 4: Simplify right side
    28,691.06x = 386,029,174.62
  5. Step 5: Solve for x
    x = 386,029,174.62/28,691.06
  6. Step 6: Final answer
    x = 13,454.69

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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.