Home / 20,230.94-27,922.24-15,443.04

Finding the Fourth Proportional to 20,230.94, 27,922.24 and 15,443.04

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Solution

The fourth proportional to 20,230.94, 27,922.24 and 15,443.04 is: 21,314.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.94 : 27,922.24 = 15,443.04 : x
  2. Step 2: Convert to fraction form
    20,230.94/27,922.24 = 15,443.04/x
  3. Step 3: Cross multiply
    20,230.94x = 27,922.24 × 15,443.04
  4. Step 4: Simplify right side
    20,230.94x = 431,204,269.21
  5. Step 5: Solve for x
    x = 431,204,269.21/20,230.94
  6. Step 6: Final answer
    x = 21,314.10

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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.