Home / 36,120.62-49,850.21-20,807.70

Finding the Fourth Proportional to 36,120.62, 49,850.21 and 20,807.70

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Solution

The fourth proportional to 36,120.62, 49,850.21 and 20,807.70 is: 28,716.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,120.62 : 49,850.21 = 20,807.70 : x
  2. Step 2: Convert to fraction form
    36,120.62/49,850.21 = 20,807.70/x
  3. Step 3: Cross multiply
    36,120.62x = 49,850.21 × 20,807.70
  4. Step 4: Simplify right side
    36,120.62x = 1,037,268,188.61
  5. Step 5: Solve for x
    x = 1,037,268,188.61/36,120.62
  6. Step 6: Final answer
    x = 28,716.79

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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.