Home / 20,213.89-30,324.07-8,528.83

Finding the Fourth Proportional to 20,213.89, 30,324.07 and 8,528.83

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Solution

The fourth proportional to 20,213.89, 30,324.07 and 8,528.83 is: 12,794.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.89 : 30,324.07 = 8,528.83 : x
  2. Step 2: Convert to fraction form
    20,213.89/30,324.07 = 8,528.83/x
  3. Step 3: Cross multiply
    20,213.89x = 30,324.07 × 8,528.83
  4. Step 4: Simplify right side
    20,213.89x = 258,628,686.32
  5. Step 5: Solve for x
    x = 258,628,686.32/20,213.89
  6. Step 6: Final answer
    x = 12,794.61

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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.