Home / 20,330.90-30,493.26-5,540.99

Finding the Fourth Proportional to 20,330.90, 30,493.26 and 5,540.99

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Solution

The fourth proportional to 20,330.90, 30,493.26 and 5,540.99 is: 8,310.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.90 : 30,493.26 = 5,540.99 : x
  2. Step 2: Convert to fraction form
    20,330.90/30,493.26 = 5,540.99/x
  3. Step 3: Cross multiply
    20,330.90x = 30,493.26 × 5,540.99
  4. Step 4: Simplify right side
    20,330.90x = 168,962,924.96
  5. Step 5: Solve for x
    x = 168,962,924.96/20,330.90
  6. Step 6: Final answer
    x = 8,310.65

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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.