Home / 28,747.17-43,120.76-7,687.37

Finding the Fourth Proportional to 28,747.17, 43,120.76 and 7,687.37

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Solution

The fourth proportional to 28,747.17, 43,120.76 and 7,687.37 is: 11,531.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.17 : 43,120.76 = 7,687.37 : x
  2. Step 2: Convert to fraction form
    28,747.17/43,120.76 = 7,687.37/x
  3. Step 3: Cross multiply
    28,747.17x = 43,120.76 × 7,687.37
  4. Step 4: Simplify right side
    28,747.17x = 331,485,306.17
  5. Step 5: Solve for x
    x = 331,485,306.17/28,747.17
  6. Step 6: Final answer
    x = 11,531.06

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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.