Home / 28,738.14-43,102.32-7,956.78

Finding the Fourth Proportional to 28,738.14, 43,102.32 and 7,956.78

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Solution

The fourth proportional to 28,738.14, 43,102.32 and 7,956.78 is: 11,933.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.14 : 43,102.32 = 7,956.78 : x
  2. Step 2: Convert to fraction form
    28,738.14/43,102.32 = 7,956.78/x
  3. Step 3: Cross multiply
    28,738.14x = 43,102.32 × 7,956.78
  4. Step 4: Simplify right side
    28,738.14x = 342,955,677.73
  5. Step 5: Solve for x
    x = 342,955,677.73/28,738.14
  6. Step 6: Final answer
    x = 11,933.82

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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.