Home / 20,244.80-30,367.68-7,771.04

Finding the Fourth Proportional to 20,244.80, 30,367.68 and 7,771.04

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Solution

The fourth proportional to 20,244.80, 30,367.68 and 7,771.04 is: 11,656.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,244.80 : 30,367.68 = 7,771.04 : x
  2. Step 2: Convert to fraction form
    20,244.80/30,367.68 = 7,771.04/x
  3. Step 3: Cross multiply
    20,244.80x = 30,367.68 × 7,771.04
  4. Step 4: Simplify right side
    20,244.80x = 235,988,455.99
  5. Step 5: Solve for x
    x = 235,988,455.99/20,244.80
  6. Step 6: Final answer
    x = 11,656.74

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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.