Home / 20,211.45-30,321.72-6,170.30

Finding the Fourth Proportional to 20,211.45, 30,321.72 and 6,170.30

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Solution

The fourth proportional to 20,211.45, 30,321.72 and 6,170.30 is: 9,256.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.45 : 30,321.72 = 6,170.30 : x
  2. Step 2: Convert to fraction form
    20,211.45/30,321.72 = 6,170.30/x
  3. Step 3: Cross multiply
    20,211.45x = 30,321.72 × 6,170.30
  4. Step 4: Simplify right side
    20,211.45x = 187,094,205.11
  5. Step 5: Solve for x
    x = 187,094,205.11/20,211.45
  6. Step 6: Final answer
    x = 9,256.84

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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.