Home / 20,529.09-30,793.64-11,757.87

Finding the Fourth Proportional to 20,529.09, 30,793.64 and 11,757.87

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Solution

The fourth proportional to 20,529.09, 30,793.64 and 11,757.87 is: 17,636.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.09 : 30,793.64 = 11,757.87 : x
  2. Step 2: Convert to fraction form
    20,529.09/30,793.64 = 11,757.87/x
  3. Step 3: Cross multiply
    20,529.09x = 30,793.64 × 11,757.87
  4. Step 4: Simplify right side
    20,529.09x = 362,067,557.16
  5. Step 5: Solve for x
    x = 362,067,557.16/20,529.09
  6. Step 6: Final answer
    x = 17,636.81

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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.