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Finding the Fourth Proportional to 20,339.59, 28,067.81 and 11,841.95

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Solution

The fourth proportional to 20,339.59, 28,067.81 and 11,841.95 is: 16,341.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,339.59 : 28,067.81 = 11,841.95 : x
  2. Step 2: Convert to fraction form
    20,339.59/28,067.81 = 11,841.95/x
  3. Step 3: Cross multiply
    20,339.59x = 28,067.81 × 11,841.95
  4. Step 4: Simplify right side
    20,339.59x = 332,377,702.40
  5. Step 5: Solve for x
    x = 332,377,702.40/20,339.59
  6. Step 6: Final answer
    x = 16,341.42

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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.