Home / 21,206.26-31,809.38-6,414.84

Finding the Fourth Proportional to 21,206.26, 31,809.38 and 6,414.84

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Solution

The fourth proportional to 21,206.26, 31,809.38 and 6,414.84 is: 9,622.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206.26 : 31,809.38 = 6,414.84 : x
  2. Step 2: Convert to fraction form
    21,206.26/31,809.38 = 6,414.84/x
  3. Step 3: Cross multiply
    21,206.26x = 31,809.38 × 6,414.84
  4. Step 4: Simplify right side
    21,206.26x = 204,052,083.20
  5. Step 5: Solve for x
    x = 204,052,083.20/21,206.26
  6. Step 6: Final answer
    x = 9,622.26

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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.