Home / 20,190.54-27,860.52-11,236.83

Finding the Fourth Proportional to 20,190.54, 27,860.52 and 11,236.83

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Solution

The fourth proportional to 20,190.54, 27,860.52 and 11,236.83 is: 15,505.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.54 : 27,860.52 = 11,236.83 : x
  2. Step 2: Convert to fraction form
    20,190.54/27,860.52 = 11,236.83/x
  3. Step 3: Cross multiply
    20,190.54x = 27,860.52 × 11,236.83
  4. Step 4: Simplify right side
    20,190.54x = 313,063,926.95
  5. Step 5: Solve for x
    x = 313,063,926.95/20,190.54
  6. Step 6: Final answer
    x = 15,505.48

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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.