Home / 20,211.92-30,319.66-6,175.12

Finding the Fourth Proportional to 20,211.92, 30,319.66 and 6,175.12

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Solution

The fourth proportional to 20,211.92, 30,319.66 and 6,175.12 is: 9,263.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.92 : 30,319.66 = 6,175.12 : x
  2. Step 2: Convert to fraction form
    20,211.92/30,319.66 = 6,175.12/x
  3. Step 3: Cross multiply
    20,211.92x = 30,319.66 × 6,175.12
  4. Step 4: Simplify right side
    20,211.92x = 187,227,538.86
  5. Step 5: Solve for x
    x = 187,227,538.86/20,211.92
  6. Step 6: Final answer
    x = 9,263.22

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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.