Home / 20,003.06-30,004.60-5,211.94

Finding the Fourth Proportional to 20,003.06, 30,004.60 and 5,211.94

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Solution

The fourth proportional to 20,003.06, 30,004.60 and 5,211.94 is: 7,817.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,003.06 : 30,004.60 = 5,211.94 : x
  2. Step 2: Convert to fraction form
    20,003.06/30,004.60 = 5,211.94/x
  3. Step 3: Cross multiply
    20,003.06x = 30,004.60 × 5,211.94
  4. Step 4: Simplify right side
    20,003.06x = 156,382,174.92
  5. Step 5: Solve for x
    x = 156,382,174.92/20,003.06
  6. Step 6: Final answer
    x = 7,817.91

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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.