Home / 20,231.74-27,919.83-11,735.47

Finding the Fourth Proportional to 20,231.74, 27,919.83 and 11,735.47

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Solution

The fourth proportional to 20,231.74, 27,919.83 and 11,735.47 is: 16,194.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.74 : 27,919.83 = 11,735.47 : x
  2. Step 2: Convert to fraction form
    20,231.74/27,919.83 = 11,735.47/x
  3. Step 3: Cross multiply
    20,231.74x = 27,919.83 × 11,735.47
  4. Step 4: Simplify right side
    20,231.74x = 327,652,327.37
  5. Step 5: Solve for x
    x = 327,652,327.37/20,231.74
  6. Step 6: Final answer
    x = 16,194.97

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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.