Home / 19,940.46-29,915.39-11,181.42

Finding the Fourth Proportional to 19,940.46, 29,915.39 and 11,181.42

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Solution

The fourth proportional to 19,940.46, 29,915.39 and 11,181.42 is: 16,774.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.46 : 29,915.39 = 11,181.42 : x
  2. Step 2: Convert to fraction form
    19,940.46/29,915.39 = 11,181.42/x
  3. Step 3: Cross multiply
    19,940.46x = 29,915.39 × 11,181.42
  4. Step 4: Simplify right side
    19,940.46x = 334,496,540.05
  5. Step 5: Solve for x
    x = 334,496,540.05/19,940.46
  6. Step 6: Final answer
    x = 16,774.77

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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.