Home / 33,872.16-46,766.40-21,144.72

Finding the Fourth Proportional to 33,872.16, 46,766.40 and 21,144.72

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Solution

The fourth proportional to 33,872.16, 46,766.40 and 21,144.72 is: 29,193.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,872.16 : 46,766.40 = 21,144.72 : x
  2. Step 2: Convert to fraction form
    33,872.16/46,766.40 = 21,144.72/x
  3. Step 3: Cross multiply
    33,872.16x = 46,766.40 × 21,144.72
  4. Step 4: Simplify right side
    33,872.16x = 988,862,433.41
  5. Step 5: Solve for x
    x = 988,862,433.41/33,872.16
  6. Step 6: Final answer
    x = 29,193.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.