Home / 23,131.44-31,921.20-13,704.48

Finding the Fourth Proportional to 23,131.44, 31,921.20 and 13,704.48

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Solution

The fourth proportional to 23,131.44, 31,921.20 and 13,704.48 is: 18,912.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,131.44 : 31,921.20 = 13,704.48 : x
  2. Step 2: Convert to fraction form
    23,131.44/31,921.20 = 13,704.48/x
  3. Step 3: Cross multiply
    23,131.44x = 31,921.20 × 13,704.48
  4. Step 4: Simplify right side
    23,131.44x = 437,463,446.98
  5. Step 5: Solve for x
    x = 437,463,446.98/23,131.44
  6. Step 6: Final answer
    x = 18,912.07

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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.