Home / 16,131.16-24,147.60-12,981.88

Finding the Fourth Proportional to 16,131.16, 24,147.60 and 12,981.88

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Solution

The fourth proportional to 16,131.16, 24,147.60 and 12,981.88 is: 19,433.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,131.16 : 24,147.60 = 12,981.88 : x
  2. Step 2: Convert to fraction form
    16,131.16/24,147.60 = 12,981.88/x
  3. Step 3: Cross multiply
    16,131.16x = 24,147.60 × 12,981.88
  4. Step 4: Simplify right side
    16,131.16x = 313,481,245.49
  5. Step 5: Solve for x
    x = 313,481,245.49/16,131.16
  6. Step 6: Final answer
    x = 19,433.27

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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.