Home / 21,630.26-29,849.76-12,198.83

Finding the Fourth Proportional to 21,630.26, 29,849.76 and 12,198.83

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Solution

The fourth proportional to 21,630.26, 29,849.76 and 12,198.83 is: 16,834.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.26 : 29,849.76 = 12,198.83 : x
  2. Step 2: Convert to fraction form
    21,630.26/29,849.76 = 12,198.83/x
  3. Step 3: Cross multiply
    21,630.26x = 29,849.76 × 12,198.83
  4. Step 4: Simplify right side
    21,630.26x = 364,132,147.78
  5. Step 5: Solve for x
    x = 364,132,147.78/21,630.26
  6. Step 6: Final answer
    x = 16,834.39

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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.