Home / 20,224.83-27,910.39-11,272.90

Finding the Fourth Proportional to 20,224.83, 27,910.39 and 11,272.90

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Solution

The fourth proportional to 20,224.83, 27,910.39 and 11,272.90 is: 15,556.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.83 : 27,910.39 = 11,272.90 : x
  2. Step 2: Convert to fraction form
    20,224.83/27,910.39 = 11,272.90/x
  3. Step 3: Cross multiply
    20,224.83x = 27,910.39 × 11,272.90
  4. Step 4: Simplify right side
    20,224.83x = 314,630,932.44
  5. Step 5: Solve for x
    x = 314,630,932.44/20,224.83
  6. Step 6: Final answer
    x = 15,556.67

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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.