Home / 20,224.88-27,911.14-11,272.30

Finding the Fourth Proportional to 20,224.88, 27,911.14 and 11,272.30

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Solution

The fourth proportional to 20,224.88, 27,911.14 and 11,272.30 is: 15,556.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.88 : 27,911.14 = 11,272.30 : x
  2. Step 2: Convert to fraction form
    20,224.88/27,911.14 = 11,272.30/x
  3. Step 3: Cross multiply
    20,224.88x = 27,911.14 × 11,272.30
  4. Step 4: Simplify right side
    20,224.88x = 314,622,743.42
  5. Step 5: Solve for x
    x = 314,622,743.42/20,224.88
  6. Step 6: Final answer
    x = 15,556.22

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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.