Home / 20,793.05-28,694.44-11,840.56

Finding the Fourth Proportional to 20,793.05, 28,694.44 and 11,840.56

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Solution

The fourth proportional to 20,793.05, 28,694.44 and 11,840.56 is: 16,339.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793.05 : 28,694.44 = 11,840.56 : x
  2. Step 2: Convert to fraction form
    20,793.05/28,694.44 = 11,840.56/x
  3. Step 3: Cross multiply
    20,793.05x = 28,694.44 × 11,840.56
  4. Step 4: Simplify right side
    20,793.05x = 339,758,238.49
  5. Step 5: Solve for x
    x = 339,758,238.49/20,793.05
  6. Step 6: Final answer
    x = 16,339.99

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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.