Home / 27,930.11-41,856.08-21,660.71

Finding the Fourth Proportional to 27,930.11, 41,856.08 and 21,660.71

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Solution

The fourth proportional to 27,930.11, 41,856.08 and 21,660.71 is: 32,460.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,930.11 : 41,856.08 = 21,660.71 : x
  2. Step 2: Convert to fraction form
    27,930.11/41,856.08 = 21,660.71/x
  3. Step 3: Cross multiply
    27,930.11x = 41,856.08 × 21,660.71
  4. Step 4: Simplify right side
    27,930.11x = 906,632,093.03
  5. Step 5: Solve for x
    x = 906,632,093.03/27,930.11
  6. Step 6: Final answer
    x = 32,460.75

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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.