Home / 31,201.92-46,736.88-21,819.72

Finding the Fourth Proportional to 31,201.92, 46,736.88 and 21,819.72

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Solution

The fourth proportional to 31,201.92, 46,736.88 and 21,819.72 is: 32,683.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,201.92 : 46,736.88 = 21,819.72 : x
  2. Step 2: Convert to fraction form
    31,201.92/46,736.88 = 21,819.72/x
  3. Step 3: Cross multiply
    31,201.92x = 46,736.88 × 21,819.72
  4. Step 4: Simplify right side
    31,201.92x = 1,019,785,635.27
  5. Step 5: Solve for x
    x = 1,019,785,635.27/31,201.92
  6. Step 6: Final answer
    x = 32,683.43

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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.