Home / 28,738.91-43,135.50-17,667.20

Finding the Fourth Proportional to 28,738.91, 43,135.50 and 17,667.20

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Solution

The fourth proportional to 28,738.91, 43,135.50 and 17,667.20 is: 26,517.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.91 : 43,135.50 = 17,667.20 : x
  2. Step 2: Convert to fraction form
    28,738.91/43,135.50 = 17,667.20/x
  3. Step 3: Cross multiply
    28,738.91x = 43,135.50 × 17,667.20
  4. Step 4: Simplify right side
    28,738.91x = 762,083,505.60
  5. Step 5: Solve for x
    x = 762,083,505.60/28,738.91
  6. Step 6: Final answer
    x = 26,517.48

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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.