Home / 28,671.27-43,019.10-13,891.20

Finding the Fourth Proportional to 28,671.27, 43,019.10 and 13,891.20

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Solution

The fourth proportional to 28,671.27, 43,019.10 and 13,891.20 is: 20,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,671.27 : 43,019.10 = 13,891.20 : x
  2. Step 2: Convert to fraction form
    28,671.27/43,019.10 = 13,891.20/x
  3. Step 3: Cross multiply
    28,671.27x = 43,019.10 × 13,891.20
  4. Step 4: Simplify right side
    28,671.27x = 597,586,921.92
  5. Step 5: Solve for x
    x = 597,586,921.92/28,671.27
  6. Step 6: Final answer
    x = 20,842.71

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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.