Home / 20,565.33-28,380.35-12,067.59

Finding the Fourth Proportional to 20,565.33, 28,380.35 and 12,067.59

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Solution

The fourth proportional to 20,565.33, 28,380.35 and 12,067.59 is: 16,653.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565.33 : 28,380.35 = 12,067.59 : x
  2. Step 2: Convert to fraction form
    20,565.33/28,380.35 = 12,067.59/x
  3. Step 3: Cross multiply
    20,565.33x = 28,380.35 × 12,067.59
  4. Step 4: Simplify right side
    20,565.33x = 342,482,367.52
  5. Step 5: Solve for x
    x = 342,482,367.52/20,565.33
  6. Step 6: Final answer
    x = 16,653.39

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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.