Home / 20,906.44-28,850.88-11,474.98

Finding the Fourth Proportional to 20,906.44, 28,850.88 and 11,474.98

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Solution

The fourth proportional to 20,906.44, 28,850.88 and 11,474.98 is: 15,835.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,906.44 : 28,850.88 = 11,474.98 : x
  2. Step 2: Convert to fraction form
    20,906.44/28,850.88 = 11,474.98/x
  3. Step 3: Cross multiply
    20,906.44x = 28,850.88 × 11,474.98
  4. Step 4: Simplify right side
    20,906.44x = 331,063,270.98
  5. Step 5: Solve for x
    x = 331,063,270.98/20,906.44
  6. Step 6: Final answer
    x = 15,835.47

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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.