Home / 20,279.58-27,984.18-11,326.56

Finding the Fourth Proportional to 20,279.58, 27,984.18 and 11,326.56

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Solution

The fourth proportional to 20,279.58, 27,984.18 and 11,326.56 is: 15,629.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.58 : 27,984.18 = 11,326.56 : x
  2. Step 2: Convert to fraction form
    20,279.58/27,984.18 = 11,326.56/x
  3. Step 3: Cross multiply
    20,279.58x = 27,984.18 × 11,326.56
  4. Step 4: Simplify right side
    20,279.58x = 316,964,493.82
  5. Step 5: Solve for x
    x = 316,964,493.82/20,279.58
  6. Step 6: Final answer
    x = 15,629.74

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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.