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Finding the Fourth Proportional to 13,351.52, 20,027.48 and 3,989.48

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Solution

The fourth proportional to 13,351.52, 20,027.48 and 3,989.48 is: 5,984.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.52 : 20,027.48 = 3,989.48 : x
  2. Step 2: Convert to fraction form
    13,351.52/20,027.48 = 3,989.48/x
  3. Step 3: Cross multiply
    13,351.52x = 20,027.48 × 3,989.48
  4. Step 4: Simplify right side
    13,351.52x = 79,899,110.83
  5. Step 5: Solve for x
    x = 79,899,110.83/13,351.52
  6. Step 6: Final answer
    x = 5,984.27

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1.5x scale

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.