Home / 20,260.22-30,390.32-5,469.14

Finding the Fourth Proportional to 20,260.22, 30,390.32 and 5,469.14

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Solution

The fourth proportional to 20,260.22, 30,390.32 and 5,469.14 is: 8,203.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.22 : 30,390.32 = 5,469.14 : x
  2. Step 2: Convert to fraction form
    20,260.22/30,390.32 = 5,469.14/x
  3. Step 3: Cross multiply
    20,260.22x = 30,390.32 × 5,469.14
  4. Step 4: Simplify right side
    20,260.22x = 166,208,735.43
  5. Step 5: Solve for x
    x = 166,208,735.43/20,260.22
  6. Step 6: Final answer
    x = 8,203.70

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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.