Home / 31,826.92-43,917.78-18,396.04

Finding the Fourth Proportional to 31,826.92, 43,917.78 and 18,396.04

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Solution

The fourth proportional to 31,826.92, 43,917.78 and 18,396.04 is: 25,384.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,826.92 : 43,917.78 = 18,396.04 : x
  2. Step 2: Convert to fraction form
    31,826.92/43,917.78 = 18,396.04/x
  3. Step 3: Cross multiply
    31,826.92x = 43,917.78 × 18,396.04
  4. Step 4: Simplify right side
    31,826.92x = 807,913,237.59
  5. Step 5: Solve for x
    x = 807,913,237.59/31,826.92
  6. Step 6: Final answer
    x = 25,384.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.