Home / 20,515.22-30,774.33-7,367.70

Finding the Fourth Proportional to 20,515.22, 30,774.33 and 7,367.70

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Solution

The fourth proportional to 20,515.22, 30,774.33 and 7,367.70 is: 11,052.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515.22 : 30,774.33 = 7,367.70 : x
  2. Step 2: Convert to fraction form
    20,515.22/30,774.33 = 7,367.70/x
  3. Step 3: Cross multiply
    20,515.22x = 30,774.33 × 7,367.70
  4. Step 4: Simplify right side
    20,515.22x = 226,736,031.14
  5. Step 5: Solve for x
    x = 226,736,031.14/20,515.22
  6. Step 6: Final answer
    x = 11,052.09

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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.