Home / 27,964.32-38,591.44-15,218.20

Finding the Fourth Proportional to 27,964.32, 38,591.44 and 15,218.20

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Solution

The fourth proportional to 27,964.32, 38,591.44 and 15,218.20 is: 21,001.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,964.32 : 38,591.44 = 15,218.20 : x
  2. Step 2: Convert to fraction form
    27,964.32/38,591.44 = 15,218.20/x
  3. Step 3: Cross multiply
    27,964.32x = 38,591.44 × 15,218.20
  4. Step 4: Simplify right side
    27,964.32x = 587,292,252.21
  5. Step 5: Solve for x
    x = 587,292,252.21/27,964.32
  6. Step 6: Final answer
    x = 21,001.49

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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.