Home / 20,993.88-31,492.19-6,954.86

Finding the Fourth Proportional to 20,993.88, 31,492.19 and 6,954.86

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Solution

The fourth proportional to 20,993.88, 31,492.19 and 6,954.86 is: 10,432.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993.88 : 31,492.19 = 6,954.86 : x
  2. Step 2: Convert to fraction form
    20,993.88/31,492.19 = 6,954.86/x
  3. Step 3: Cross multiply
    20,993.88x = 31,492.19 × 6,954.86
  4. Step 4: Simplify right side
    20,993.88x = 219,023,868.66
  5. Step 5: Solve for x
    x = 219,023,868.66/20,993.88
  6. Step 6: Final answer
    x = 10,432.75

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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.