Home / 20,601.88-28,429.04-11,650.22

Finding the Fourth Proportional to 20,601.88, 28,429.04 and 11,650.22

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Solution

The fourth proportional to 20,601.88, 28,429.04 and 11,650.22 is: 16,076.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.88 : 28,429.04 = 11,650.22 : x
  2. Step 2: Convert to fraction form
    20,601.88/28,429.04 = 11,650.22/x
  3. Step 3: Cross multiply
    20,601.88x = 28,429.04 × 11,650.22
  4. Step 4: Simplify right side
    20,601.88x = 331,204,570.39
  5. Step 5: Solve for x
    x = 331,204,570.39/20,601.88
  6. Step 6: Final answer
    x = 16,076.42

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1.5x scale

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.