Home / 21,630.98-29,849.60-12,198.94

Finding the Fourth Proportional to 21,630.98, 29,849.60 and 12,198.94

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Solution

The fourth proportional to 21,630.98, 29,849.60 and 12,198.94 is: 16,833.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.98 : 29,849.60 = 12,198.94 : x
  2. Step 2: Convert to fraction form
    21,630.98/29,849.60 = 12,198.94/x
  3. Step 3: Cross multiply
    21,630.98x = 29,849.60 × 12,198.94
  4. Step 4: Simplify right side
    21,630.98x = 364,133,435.30
  5. Step 5: Solve for x
    x = 364,133,435.30/21,630.98
  6. Step 6: Final answer
    x = 16,833.88

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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.