Home / 27,719.25-38,252.76-15,144

Finding the Fourth Proportional to 27,719.25, 38,252.76 and 15,144

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Solution

The fourth proportional to 27,719.25, 38,252.76 and 15,144 is: 20,898.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,719.25 : 38,252.76 = 15,144 : x
  2. Step 2: Convert to fraction form
    27,719.25/38,252.76 = 15,144/x
  3. Step 3: Cross multiply
    27,719.25x = 38,252.76 × 15,144
  4. Step 4: Simplify right side
    27,719.25x = 579,299,797.44
  5. Step 5: Solve for x
    x = 579,299,797.44/27,719.25
  6. Step 6: Final answer
    x = 20,898.83

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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.