Home / 20,904.16-28,849.24-11,951.43

Finding the Fourth Proportional to 20,904.16, 28,849.24 and 11,951.43

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Solution

The fourth proportional to 20,904.16, 28,849.24 and 11,951.43 is: 16,493.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.16 : 28,849.24 = 11,951.43 : x
  2. Step 2: Convert to fraction form
    20,904.16/28,849.24 = 11,951.43/x
  3. Step 3: Cross multiply
    20,904.16x = 28,849.24 × 11,951.43
  4. Step 4: Simplify right side
    20,904.16x = 344,789,672.41
  5. Step 5: Solve for x
    x = 344,789,672.41/20,904.16
  6. Step 6: Final answer
    x = 16,493.83

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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.