Home / 21,334.92-29,447.46-12,958.44

Finding the Fourth Proportional to 21,334.92, 29,447.46 and 12,958.44

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Solution

The fourth proportional to 21,334.92, 29,447.46 and 12,958.44 is: 17,885.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,334.92 : 29,447.46 = 12,958.44 : x
  2. Step 2: Convert to fraction form
    21,334.92/29,447.46 = 12,958.44/x
  3. Step 3: Cross multiply
    21,334.92x = 29,447.46 × 12,958.44
  4. Step 4: Simplify right side
    21,334.92x = 381,593,143.56
  5. Step 5: Solve for x
    x = 381,593,143.56/21,334.92
  6. Step 6: Final answer
    x = 17,885.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.