Home / 20,216.22-30,330.20-8,367.81

Finding the Fourth Proportional to 20,216.22, 30,330.20 and 8,367.81

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Solution

The fourth proportional to 20,216.22, 30,330.20 and 8,367.81 is: 12,554.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216.22 : 30,330.20 = 8,367.81 : x
  2. Step 2: Convert to fraction form
    20,216.22/30,330.20 = 8,367.81/x
  3. Step 3: Cross multiply
    20,216.22x = 30,330.20 × 8,367.81
  4. Step 4: Simplify right side
    20,216.22x = 253,797,309.02
  5. Step 5: Solve for x
    x = 253,797,309.02/20,216.22
  6. Step 6: Final answer
    x = 12,554.14

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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.