Home / 28,785.12-43,183-11,253.84

Finding the Fourth Proportional to 28,785.12, 43,183 and 11,253.84

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Solution

The fourth proportional to 28,785.12, 43,183 and 11,253.84 is: 16,882.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785.12 : 43,183 = 11,253.84 : x
  2. Step 2: Convert to fraction form
    28,785.12/43,183 = 11,253.84/x
  3. Step 3: Cross multiply
    28,785.12x = 43,183 × 11,253.84
  4. Step 4: Simplify right side
    28,785.12x = 485,974,572.72
  5. Step 5: Solve for x
    x = 485,974,572.72/28,785.12
  6. Step 6: Final answer
    x = 16,882.84

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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.