Home / 21,003.83-31,511.89-6,213.14

Finding the Fourth Proportional to 21,003.83, 31,511.89 and 6,213.14

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Solution

The fourth proportional to 21,003.83, 31,511.89 and 6,213.14 is: 9,321.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003.83 : 31,511.89 = 6,213.14 : x
  2. Step 2: Convert to fraction form
    21,003.83/31,511.89 = 6,213.14/x
  3. Step 3: Cross multiply
    21,003.83x = 31,511.89 × 6,213.14
  4. Step 4: Simplify right side
    21,003.83x = 195,787,626.68
  5. Step 5: Solve for x
    x = 195,787,626.68/21,003.83
  6. Step 6: Final answer
    x = 9,321.52

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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.