Home / 18,631.01-27,936.90-5,481.68

Finding the Fourth Proportional to 18,631.01, 27,936.90 and 5,481.68

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Solution

The fourth proportional to 18,631.01, 27,936.90 and 5,481.68 is: 8,219.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.01 : 27,936.90 = 5,481.68 : x
  2. Step 2: Convert to fraction form
    18,631.01/27,936.90 = 5,481.68/x
  3. Step 3: Cross multiply
    18,631.01x = 27,936.90 × 5,481.68
  4. Step 4: Simplify right side
    18,631.01x = 153,141,006.31
  5. Step 5: Solve for x
    x = 153,141,006.31/18,631.01
  6. Step 6: Final answer
    x = 8,219.68

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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.