Home / 20,055.36-30,093.30-8,217.76

Finding the Fourth Proportional to 20,055.36, 30,093.30 and 8,217.76

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Solution

The fourth proportional to 20,055.36, 30,093.30 and 8,217.76 is: 12,330.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.36 : 30,093.30 = 8,217.76 : x
  2. Step 2: Convert to fraction form
    20,055.36/30,093.30 = 8,217.76/x
  3. Step 3: Cross multiply
    20,055.36x = 30,093.30 × 8,217.76
  4. Step 4: Simplify right side
    20,055.36x = 247,299,517.01
  5. Step 5: Solve for x
    x = 247,299,517.01/20,055.36
  6. Step 6: Final answer
    x = 12,330.84

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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.