Home / 16,031.36-22,121.70-8,958.44

Finding the Fourth Proportional to 16,031.36, 22,121.70 and 8,958.44

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Solution

The fourth proportional to 16,031.36, 22,121.70 and 8,958.44 is: 12,361.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,031.36 : 22,121.70 = 8,958.44 : x
  2. Step 2: Convert to fraction form
    16,031.36/22,121.70 = 8,958.44/x
  3. Step 3: Cross multiply
    16,031.36x = 22,121.70 × 8,958.44
  4. Step 4: Simplify right side
    16,031.36x = 198,175,922.15
  5. Step 5: Solve for x
    x = 198,175,922.15/16,031.36
  6. Step 6: Final answer
    x = 12,361.77

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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.