Home / 20,221.74-27,905.61-11,023.37

Finding the Fourth Proportional to 20,221.74, 27,905.61 and 11,023.37

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Solution

The fourth proportional to 20,221.74, 27,905.61 and 11,023.37 is: 15,212.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.74 : 27,905.61 = 11,023.37 : x
  2. Step 2: Convert to fraction form
    20,221.74/27,905.61 = 11,023.37/x
  3. Step 3: Cross multiply
    20,221.74x = 27,905.61 × 11,023.37
  4. Step 4: Simplify right side
    20,221.74x = 307,613,724.58
  5. Step 5: Solve for x
    x = 307,613,724.58/20,221.74
  6. Step 6: Final answer
    x = 15,212.03

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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.