Home / 27,886.31-41,856.81-20,469.75

Finding the Fourth Proportional to 27,886.31, 41,856.81 and 20,469.75

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Solution

The fourth proportional to 27,886.31, 41,856.81 and 20,469.75 is: 30,724.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,886.31 : 41,856.81 = 20,469.75 : x
  2. Step 2: Convert to fraction form
    27,886.31/41,856.81 = 20,469.75/x
  3. Step 3: Cross multiply
    27,886.31x = 41,856.81 × 20,469.75
  4. Step 4: Simplify right side
    27,886.31x = 856,798,334.15
  5. Step 5: Solve for x
    x = 856,798,334.15/27,886.31
  6. Step 6: Final answer
    x = 30,724.69

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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.