Home / 28,717.58-43,072.94-7,659.20

Finding the Fourth Proportional to 28,717.58, 43,072.94 and 7,659.20

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Solution

The fourth proportional to 28,717.58, 43,072.94 and 7,659.20 is: 11,487.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.58 : 43,072.94 = 7,659.20 : x
  2. Step 2: Convert to fraction form
    28,717.58/43,072.94 = 7,659.20/x
  3. Step 3: Cross multiply
    28,717.58x = 43,072.94 × 7,659.20
  4. Step 4: Simplify right side
    28,717.58x = 329,904,262.05
  5. Step 5: Solve for x
    x = 329,904,262.05/28,717.58
  6. Step 6: Final answer
    x = 11,487.89

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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.