Home / 20,243.77-30,362.20-5,449.39

Finding the Fourth Proportional to 20,243.77, 30,362.20 and 5,449.39

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Solution

The fourth proportional to 20,243.77, 30,362.20 and 5,449.39 is: 8,173.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.77 : 30,362.20 = 5,449.39 : x
  2. Step 2: Convert to fraction form
    20,243.77/30,362.20 = 5,449.39/x
  3. Step 3: Cross multiply
    20,243.77x = 30,362.20 × 5,449.39
  4. Step 4: Simplify right side
    20,243.77x = 165,455,469.06
  5. Step 5: Solve for x
    x = 165,455,469.06/20,243.77
  6. Step 6: Final answer
    x = 8,173.15

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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.