Home / 18,479.80-27,747.78-16,138.36

Finding the Fourth Proportional to 18,479.80, 27,747.78 and 16,138.36

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Solution

The fourth proportional to 18,479.80, 27,747.78 and 16,138.36 is: 24,232.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.80 : 27,747.78 = 16,138.36 : x
  2. Step 2: Convert to fraction form
    18,479.80/27,747.78 = 16,138.36/x
  3. Step 3: Cross multiply
    18,479.80x = 27,747.78 × 16,138.36
  4. Step 4: Simplify right side
    18,479.80x = 447,803,662.84
  5. Step 5: Solve for x
    x = 447,803,662.84/18,479.80
  6. Step 6: Final answer
    x = 24,232.06

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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.