Home / 21,380.43-32,074.68-8,893.65

Finding the Fourth Proportional to 21,380.43, 32,074.68 and 8,893.65

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Solution

The fourth proportional to 21,380.43, 32,074.68 and 8,893.65 is: 13,342.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,380.43 : 32,074.68 = 8,893.65 : x
  2. Step 2: Convert to fraction form
    21,380.43/32,074.68 = 8,893.65/x
  3. Step 3: Cross multiply
    21,380.43x = 32,074.68 × 8,893.65
  4. Step 4: Simplify right side
    21,380.43x = 285,260,977.78
  5. Step 5: Solve for x
    x = 285,260,977.78/21,380.43
  6. Step 6: Final answer
    x = 13,342.15

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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.