Home / 21,446.94-32,170.20-8,290.11

Finding the Fourth Proportional to 21,446.94, 32,170.20 and 8,290.11

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Solution

The fourth proportional to 21,446.94, 32,170.20 and 8,290.11 is: 12,435.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,446.94 : 32,170.20 = 8,290.11 : x
  2. Step 2: Convert to fraction form
    21,446.94/32,170.20 = 8,290.11/x
  3. Step 3: Cross multiply
    21,446.94x = 32,170.20 × 8,290.11
  4. Step 4: Simplify right side
    21,446.94x = 266,694,496.72
  5. Step 5: Solve for x
    x = 266,694,496.72/21,446.94
  6. Step 6: Final answer
    x = 12,435.08

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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.