Home / 20,655.82-28,503.41-11,704.73

Finding the Fourth Proportional to 20,655.82, 28,503.41 and 11,704.73

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Solution

The fourth proportional to 20,655.82, 28,503.41 and 11,704.73 is: 16,151.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.82 : 28,503.41 = 11,704.73 : x
  2. Step 2: Convert to fraction form
    20,655.82/28,503.41 = 11,704.73/x
  3. Step 3: Cross multiply
    20,655.82x = 28,503.41 × 11,704.73
  4. Step 4: Simplify right side
    20,655.82x = 333,624,604.87
  5. Step 5: Solve for x
    x = 333,624,604.87/20,655.82
  6. Step 6: Final answer
    x = 16,151.60

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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.