Home / 20,341.20-28,073.82-11,725.73

Finding the Fourth Proportional to 20,341.20, 28,073.82 and 11,725.73

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Solution

The fourth proportional to 20,341.20, 28,073.82 and 11,725.73 is: 16,183.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341.20 : 28,073.82 = 11,725.73 : x
  2. Step 2: Convert to fraction form
    20,341.20/28,073.82 = 11,725.73/x
  3. Step 3: Cross multiply
    20,341.20x = 28,073.82 × 11,725.73
  4. Step 4: Simplify right side
    20,341.20x = 329,185,893.02
  5. Step 5: Solve for x
    x = 329,185,893.02/20,341.20
  6. Step 6: Final answer
    x = 16,183.21

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1.5x scale

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.