Home / 21,195.72-31,793.88-6,404.76

Finding the Fourth Proportional to 21,195.72, 31,793.88 and 6,404.76

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Solution

The fourth proportional to 21,195.72, 31,793.88 and 6,404.76 is: 9,607.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.72 : 31,793.88 = 6,404.76 : x
  2. Step 2: Convert to fraction form
    21,195.72/31,793.88 = 6,404.76/x
  3. Step 3: Cross multiply
    21,195.72x = 31,793.88 × 6,404.76
  4. Step 4: Simplify right side
    21,195.72x = 203,632,170.87
  5. Step 5: Solve for x
    x = 203,632,170.87/21,195.72
  6. Step 6: Final answer
    x = 9,607.23

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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.