Home / 19,486.20-29,229.30-8,956.20

Finding the Fourth Proportional to 19,486.20, 29,229.30 and 8,956.20

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Solution

The fourth proportional to 19,486.20, 29,229.30 and 8,956.20 is: 13,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486.20 : 29,229.30 = 8,956.20 : x
  2. Step 2: Convert to fraction form
    19,486.20/29,229.30 = 8,956.20/x
  3. Step 3: Cross multiply
    19,486.20x = 29,229.30 × 8,956.20
  4. Step 4: Simplify right side
    19,486.20x = 261,783,456.66
  5. Step 5: Solve for x
    x = 261,783,456.66/19,486.20
  6. Step 6: Final answer
    x = 13,434.30

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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.