Home / 27,961.92-41,890.80-13,905.84

Finding the Fourth Proportional to 27,961.92, 41,890.80 and 13,905.84

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Solution

The fourth proportional to 27,961.92, 41,890.80 and 13,905.84 is: 20,832.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,961.92 : 41,890.80 = 13,905.84 : x
  2. Step 2: Convert to fraction form
    27,961.92/41,890.80 = 13,905.84/x
  3. Step 3: Cross multiply
    27,961.92x = 41,890.80 × 13,905.84
  4. Step 4: Simplify right side
    27,961.92x = 582,526,762.27
  5. Step 5: Solve for x
    x = 582,526,762.27/27,961.92
  6. Step 6: Final answer
    x = 20,832.86

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1.5x scale

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.