Home / 28,708.73-43,065.27-7,648.70

Finding the Fourth Proportional to 28,708.73, 43,065.27 and 7,648.70

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Solution

The fourth proportional to 28,708.73, 43,065.27 and 7,648.70 is: 11,473.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708.73 : 43,065.27 = 7,648.70 : x
  2. Step 2: Convert to fraction form
    28,708.73/43,065.27 = 7,648.70/x
  3. Step 3: Cross multiply
    28,708.73x = 43,065.27 × 7,648.70
  4. Step 4: Simplify right side
    28,708.73x = 329,393,115.32
  5. Step 5: Solve for x
    x = 329,393,115.32/28,708.73
  6. Step 6: Final answer
    x = 11,473.62

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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.