Home / 19,454.20-29,181.30-5,414.20

Finding the Fourth Proportional to 19,454.20, 29,181.30 and 5,414.20

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Solution

The fourth proportional to 19,454.20, 29,181.30 and 5,414.20 is: 8,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,454.20 : 29,181.30 = 5,414.20 : x
  2. Step 2: Convert to fraction form
    19,454.20/29,181.30 = 5,414.20/x
  3. Step 3: Cross multiply
    19,454.20x = 29,181.30 × 5,414.20
  4. Step 4: Simplify right side
    19,454.20x = 157,993,394.46
  5. Step 5: Solve for x
    x = 157,993,394.46/19,454.20
  6. Step 6: Final answer
    x = 8,121.30

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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.