Home / 20,604.14-28,431.94-11,652.02

Finding the Fourth Proportional to 20,604.14, 28,431.94 and 11,652.02

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Solution

The fourth proportional to 20,604.14, 28,431.94 and 11,652.02 is: 16,078.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,604.14 : 28,431.94 = 11,652.02 : x
  2. Step 2: Convert to fraction form
    20,604.14/28,431.94 = 11,652.02/x
  3. Step 3: Cross multiply
    20,604.14x = 28,431.94 × 11,652.02
  4. Step 4: Simplify right side
    20,604.14x = 331,289,533.52
  5. Step 5: Solve for x
    x = 331,289,533.52/20,604.14
  6. Step 6: Final answer
    x = 16,078.78

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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.