Home / 20,224.90-27,910.47-11,272.33

Finding the Fourth Proportional to 20,224.90, 27,910.47 and 11,272.33

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Solution

The fourth proportional to 20,224.90, 27,910.47 and 11,272.33 is: 15,555.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.90 : 27,910.47 = 11,272.33 : x
  2. Step 2: Convert to fraction form
    20,224.90/27,910.47 = 11,272.33/x
  3. Step 3: Cross multiply
    20,224.90x = 27,910.47 × 11,272.33
  4. Step 4: Simplify right side
    20,224.90x = 314,616,028.30
  5. Step 5: Solve for x
    x = 314,616,028.30/20,224.90
  6. Step 6: Final answer
    x = 15,555.88

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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.