Home / 21,236.18-31,854.94-5,441.31

Finding the Fourth Proportional to 21,236.18, 31,854.94 and 5,441.31

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Solution

The fourth proportional to 21,236.18, 31,854.94 and 5,441.31 is: 8,162.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,236.18 : 31,854.94 = 5,441.31 : x
  2. Step 2: Convert to fraction form
    21,236.18/31,854.94 = 5,441.31/x
  3. Step 3: Cross multiply
    21,236.18x = 31,854.94 × 5,441.31
  4. Step 4: Simplify right side
    21,236.18x = 173,332,589.97
  5. Step 5: Solve for x
    x = 173,332,589.97/21,236.18
  6. Step 6: Final answer
    x = 8,162.14

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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.