Home / 20,320.92-30,481.38-8,625.95

Finding the Fourth Proportional to 20,320.92, 30,481.38 and 8,625.95

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Solution

The fourth proportional to 20,320.92, 30,481.38 and 8,625.95 is: 12,938.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320.92 : 30,481.38 = 8,625.95 : x
  2. Step 2: Convert to fraction form
    20,320.92/30,481.38 = 8,625.95/x
  3. Step 3: Cross multiply
    20,320.92x = 30,481.38 × 8,625.95
  4. Step 4: Simplify right side
    20,320.92x = 262,930,707.40
  5. Step 5: Solve for x
    x = 262,930,707.40/20,320.92
  6. Step 6: Final answer
    x = 12,938.92

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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.