Home / 18,630.24-27,899.79-12,036.43

Finding the Fourth Proportional to 18,630.24, 27,899.79 and 12,036.43

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Solution

The fourth proportional to 18,630.24, 27,899.79 and 12,036.43 is: 18,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.24 : 27,899.79 = 12,036.43 : x
  2. Step 2: Convert to fraction form
    18,630.24/27,899.79 = 12,036.43/x
  3. Step 3: Cross multiply
    18,630.24x = 27,899.79 × 12,036.43
  4. Step 4: Simplify right side
    18,630.24x = 335,813,869.35
  5. Step 5: Solve for x
    x = 335,813,869.35/18,630.24
  6. Step 6: Final answer
    x = 18,025.20

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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.