Home / 18,429.12-25,456.68-16,067.16

Finding the Fourth Proportional to 18,429.12, 25,456.68 and 16,067.16

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Solution

The fourth proportional to 18,429.12, 25,456.68 and 16,067.16 is: 22,194.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.12 : 25,456.68 = 16,067.16 : x
  2. Step 2: Convert to fraction form
    18,429.12/25,456.68 = 16,067.16/x
  3. Step 3: Cross multiply
    18,429.12x = 25,456.68 × 16,067.16
  4. Step 4: Simplify right side
    18,429.12x = 409,016,550.63
  5. Step 5: Solve for x
    x = 409,016,550.63/18,429.12
  6. Step 6: Final answer
    x = 22,194.04

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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.