Home / 20,446.54-28,216.54-11,494.02

Finding the Fourth Proportional to 20,446.54, 28,216.54 and 11,494.02

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Solution

The fourth proportional to 20,446.54, 28,216.54 and 11,494.02 is: 15,861.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.54 : 28,216.54 = 11,494.02 : x
  2. Step 2: Convert to fraction form
    20,446.54/28,216.54 = 11,494.02/x
  3. Step 3: Cross multiply
    20,446.54x = 28,216.54 × 11,494.02
  4. Step 4: Simplify right side
    20,446.54x = 324,321,475.09
  5. Step 5: Solve for x
    x = 324,321,475.09/20,446.54
  6. Step 6: Final answer
    x = 15,861.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.