Home / 27,356.05-41,034.06-21,125.15

Finding the Fourth Proportional to 27,356.05, 41,034.06 and 21,125.15

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Solution

The fourth proportional to 27,356.05, 41,034.06 and 21,125.15 is: 31,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,356.05 : 41,034.06 = 21,125.15 : x
  2. Step 2: Convert to fraction form
    27,356.05/41,034.06 = 21,125.15/x
  3. Step 3: Cross multiply
    27,356.05x = 41,034.06 × 21,125.15
  4. Step 4: Simplify right side
    27,356.05x = 866,850,700.54
  5. Step 5: Solve for x
    x = 866,850,700.54/27,356.05
  6. Step 6: Final answer
    x = 31,687.71

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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.