Home / 20,028.20-27,650.16-13,323.02

Finding the Fourth Proportional to 20,028.20, 27,650.16 and 13,323.02

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Solution

The fourth proportional to 20,028.20, 27,650.16 and 13,323.02 is: 18,393.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.20 : 27,650.16 = 13,323.02 : x
  2. Step 2: Convert to fraction form
    20,028.20/27,650.16 = 13,323.02/x
  3. Step 3: Cross multiply
    20,028.20x = 27,650.16 × 13,323.02
  4. Step 4: Simplify right side
    20,028.20x = 368,383,496.43
  5. Step 5: Solve for x
    x = 368,383,496.43/20,028.20
  6. Step 6: Final answer
    x = 18,393.24

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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.