Home / 27,736.08-41,568.12-21,138

Finding the Fourth Proportional to 27,736.08, 41,568.12 and 21,138

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Solution

The fourth proportional to 27,736.08, 41,568.12 and 21,138 is: 31,679.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,736.08 : 41,568.12 = 21,138 : x
  2. Step 2: Convert to fraction form
    27,736.08/41,568.12 = 21,138/x
  3. Step 3: Cross multiply
    27,736.08x = 41,568.12 × 21,138
  4. Step 4: Simplify right side
    27,736.08x = 878,666,920.56
  5. Step 5: Solve for x
    x = 878,666,920.56/27,736.08
  6. Step 6: Final answer
    x = 31,679.56

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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.