Home / 13,349.22-20,023.56-3,989.27

Finding the Fourth Proportional to 13,349.22, 20,023.56 and 3,989.27

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Solution

The fourth proportional to 13,349.22, 20,023.56 and 3,989.27 is: 5,983.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.22 : 20,023.56 = 3,989.27 : x
  2. Step 2: Convert to fraction form
    13,349.22/20,023.56 = 3,989.27/x
  3. Step 3: Cross multiply
    13,349.22x = 20,023.56 × 3,989.27
  4. Step 4: Simplify right side
    13,349.22x = 79,879,287.08
  5. Step 5: Solve for x
    x = 79,879,287.08/13,349.22
  6. Step 6: Final answer
    x = 5,983.82

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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.