Home / 20,010.06-30,015.09-5,218.95

Finding the Fourth Proportional to 20,010.06, 30,015.09 and 5,218.95

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Solution

The fourth proportional to 20,010.06, 30,015.09 and 5,218.95 is: 7,828.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.06 : 30,015.09 = 5,218.95 : x
  2. Step 2: Convert to fraction form
    20,010.06/30,015.09 = 5,218.95/x
  3. Step 3: Cross multiply
    20,010.06x = 30,015.09 × 5,218.95
  4. Step 4: Simplify right side
    20,010.06x = 156,647,253.96
  5. Step 5: Solve for x
    x = 156,647,253.96/20,010.06
  6. Step 6: Final answer
    x = 7,828.43

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Similar ratio
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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.