Home / 21,467.75-32,160.11-12,079.25

Finding the Fourth Proportional to 21,467.75, 32,160.11 and 12,079.25

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Solution

The fourth proportional to 21,467.75, 32,160.11 and 12,079.25 is: 18,095.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,467.75 : 32,160.11 = 12,079.25 : x
  2. Step 2: Convert to fraction form
    21,467.75/32,160.11 = 12,079.25/x
  3. Step 3: Cross multiply
    21,467.75x = 32,160.11 × 12,079.25
  4. Step 4: Simplify right side
    21,467.75x = 388,469,878.12
  5. Step 5: Solve for x
    x = 388,469,878.12/21,467.75
  6. Step 6: Final answer
    x = 18,095.51

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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.