Home / 20,992.39-31,493.22-6,956.80

Finding the Fourth Proportional to 20,992.39, 31,493.22 and 6,956.80

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Solution

The fourth proportional to 20,992.39, 31,493.22 and 6,956.80 is: 10,436.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,992.39 : 31,493.22 = 6,956.80 : x
  2. Step 2: Convert to fraction form
    20,992.39/31,493.22 = 6,956.80/x
  3. Step 3: Cross multiply
    20,992.39x = 31,493.22 × 6,956.80
  4. Step 4: Simplify right side
    20,992.39x = 219,092,032.90
  5. Step 5: Solve for x
    x = 219,092,032.90/20,992.39
  6. Step 6: Final answer
    x = 10,436.74

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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.