Home / 18,311-27,471.96-12,984.44

Finding the Fourth Proportional to 18,311, 27,471.96 and 12,984.44

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Solution

The fourth proportional to 18,311, 27,471.96 and 12,984.44 is: 19,480.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311 : 27,471.96 = 12,984.44 : x
  2. Step 2: Convert to fraction form
    18,311/27,471.96 = 12,984.44/x
  3. Step 3: Cross multiply
    18,311x = 27,471.96 × 12,984.44
  4. Step 4: Simplify right side
    18,311x = 356,708,016.30
  5. Step 5: Solve for x
    x = 356,708,016.30/18,311
  6. Step 6: Final answer
    x = 19,480.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.