Home / 28,731.92-43,025.76-18,170.08

Finding the Fourth Proportional to 28,731.92, 43,025.76 and 18,170.08

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Solution

The fourth proportional to 28,731.92, 43,025.76 and 18,170.08 is: 27,209.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731.92 : 43,025.76 = 18,170.08 : x
  2. Step 2: Convert to fraction form
    28,731.92/43,025.76 = 18,170.08/x
  3. Step 3: Cross multiply
    28,731.92x = 43,025.76 × 18,170.08
  4. Step 4: Simplify right side
    28,731.92x = 781,781,393.70
  5. Step 5: Solve for x
    x = 781,781,393.70/28,731.92
  6. Step 6: Final answer
    x = 27,209.51

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1.5x scale

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.