Home / 20,087.22-27,719.61-11,134.86

Finding the Fourth Proportional to 20,087.22, 27,719.61 and 11,134.86

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Solution

The fourth proportional to 20,087.22, 27,719.61 and 11,134.86 is: 15,365.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.22 : 27,719.61 = 11,134.86 : x
  2. Step 2: Convert to fraction form
    20,087.22/27,719.61 = 11,134.86/x
  3. Step 3: Cross multiply
    20,087.22x = 27,719.61 × 11,134.86
  4. Step 4: Simplify right side
    20,087.22x = 308,653,976.60
  5. Step 5: Solve for x
    x = 308,653,976.60/20,087.22
  6. Step 6: Final answer
    x = 15,365.69

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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.