Home / 20,142.32-27,797.24-12,183.12

Finding the Fourth Proportional to 20,142.32, 27,797.24 and 12,183.12

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Solution

The fourth proportional to 20,142.32, 27,797.24 and 12,183.12 is: 16,813.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142.32 : 27,797.24 = 12,183.12 : x
  2. Step 2: Convert to fraction form
    20,142.32/27,797.24 = 12,183.12/x
  3. Step 3: Cross multiply
    20,142.32x = 27,797.24 × 12,183.12
  4. Step 4: Simplify right side
    20,142.32x = 338,657,110.59
  5. Step 5: Solve for x
    x = 338,657,110.59/20,142.32
  6. Step 6: Final answer
    x = 16,813.21

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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.