Home / 20,366.12-30,550.59-8,515.41

Finding the Fourth Proportional to 20,366.12, 30,550.59 and 8,515.41

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Solution

The fourth proportional to 20,366.12, 30,550.59 and 8,515.41 is: 12,773.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,366.12 : 30,550.59 = 8,515.41 : x
  2. Step 2: Convert to fraction form
    20,366.12/30,550.59 = 8,515.41/x
  3. Step 3: Cross multiply
    20,366.12x = 30,550.59 × 8,515.41
  4. Step 4: Simplify right side
    20,366.12x = 260,150,799.59
  5. Step 5: Solve for x
    x = 260,150,799.59/20,366.12
  6. Step 6: Final answer
    x = 12,773.71

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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.