Home / 27,889.11-38,487.30-15,142.44

Finding the Fourth Proportional to 27,889.11, 38,487.30 and 15,142.44

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Solution

The fourth proportional to 27,889.11, 38,487.30 and 15,142.44 is: 20,896.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,889.11 : 38,487.30 = 15,142.44 : x
  2. Step 2: Convert to fraction form
    27,889.11/38,487.30 = 15,142.44/x
  3. Step 3: Cross multiply
    27,889.11x = 38,487.30 × 15,142.44
  4. Step 4: Simplify right side
    27,889.11x = 582,791,803.73
  5. Step 5: Solve for x
    x = 582,791,803.73/27,889.11
  6. Step 6: Final answer
    x = 20,896.75

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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.