Home / 27,621-41,427.72-7,901.28

Finding the Fourth Proportional to 27,621, 41,427.72 and 7,901.28

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Solution

The fourth proportional to 27,621, 41,427.72 and 7,901.28 is: 11,850.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621 : 41,427.72 = 7,901.28 : x
  2. Step 2: Convert to fraction form
    27,621/41,427.72 = 7,901.28/x
  3. Step 3: Cross multiply
    27,621x = 41,427.72 × 7,901.28
  4. Step 4: Simplify right side
    27,621x = 327,332,015.48
  5. Step 5: Solve for x
    x = 327,332,015.48/27,621
  6. Step 6: Final answer
    x = 11,850.84

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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.