Home / 20,180.22-27,848.45-11,227.49

Finding the Fourth Proportional to 20,180.22, 27,848.45 and 11,227.49

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Solution

The fourth proportional to 20,180.22, 27,848.45 and 11,227.49 is: 15,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.22 : 27,848.45 = 11,227.49 : x
  2. Step 2: Convert to fraction form
    20,180.22/27,848.45 = 11,227.49/x
  3. Step 3: Cross multiply
    20,180.22x = 27,848.45 × 11,227.49
  4. Step 4: Simplify right side
    20,180.22x = 312,668,291.58
  5. Step 5: Solve for x
    x = 312,668,291.58/20,180.22
  6. Step 6: Final answer
    x = 15,493.80

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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.