Home / 13,348.97-20,023.19-3,989.02

Finding the Fourth Proportional to 13,348.97, 20,023.19 and 3,989.02

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Solution

The fourth proportional to 13,348.97, 20,023.19 and 3,989.02 is: 5,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.97 : 20,023.19 = 3,989.02 : x
  2. Step 2: Convert to fraction form
    13,348.97/20,023.19 = 3,989.02/x
  3. Step 3: Cross multiply
    13,348.97x = 20,023.19 × 3,989.02
  4. Step 4: Simplify right side
    13,348.97x = 79,872,785.31
  5. Step 5: Solve for x
    x = 79,872,785.31/13,348.97
  6. Step 6: Final answer
    x = 5,983.44

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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.