Home / 20,211.12-30,316.68-6,170.58

Finding the Fourth Proportional to 20,211.12, 30,316.68 and 6,170.58

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Solution

The fourth proportional to 20,211.12, 30,316.68 and 6,170.58 is: 9,255.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.12 : 30,316.68 = 6,170.58 : x
  2. Step 2: Convert to fraction form
    20,211.12/30,316.68 = 6,170.58/x
  3. Step 3: Cross multiply
    20,211.12x = 30,316.68 × 6,170.58
  4. Step 4: Simplify right side
    20,211.12x = 187,071,499.27
  5. Step 5: Solve for x
    x = 187,071,499.27/20,211.12
  6. Step 6: Final answer
    x = 9,255.87

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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.