Home / 20,168.80-30,257.75-11,293.02

Finding the Fourth Proportional to 20,168.80, 30,257.75 and 11,293.02

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Solution

The fourth proportional to 20,168.80, 30,257.75 and 11,293.02 is: 16,942.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.80 : 30,257.75 = 11,293.02 : x
  2. Step 2: Convert to fraction form
    20,168.80/30,257.75 = 11,293.02/x
  3. Step 3: Cross multiply
    20,168.80x = 30,257.75 × 11,293.02
  4. Step 4: Simplify right side
    20,168.80x = 341,701,404.14
  5. Step 5: Solve for x
    x = 341,701,404.14/20,168.80
  6. Step 6: Final answer
    x = 16,942.08

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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.