Home / 20,211.08-30,325.44-7,072.88

Finding the Fourth Proportional to 20,211.08, 30,325.44 and 7,072.88

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Solution

The fourth proportional to 20,211.08, 30,325.44 and 7,072.88 is: 10,612.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.08 : 30,325.44 = 7,072.88 : x
  2. Step 2: Convert to fraction form
    20,211.08/30,325.44 = 7,072.88/x
  3. Step 3: Cross multiply
    20,211.08x = 30,325.44 × 7,072.88
  4. Step 4: Simplify right side
    20,211.08x = 214,488,198.07
  5. Step 5: Solve for x
    x = 214,488,198.07/20,211.08
  6. Step 6: Final answer
    x = 10,612.41

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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.