Home / 20,813.16-31,180.86-16,186.44

Finding the Fourth Proportional to 20,813.16, 31,180.86 and 16,186.44

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Solution

The fourth proportional to 20,813.16, 31,180.86 and 16,186.44 is: 24,249.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,813.16 : 31,180.86 = 16,186.44 : x
  2. Step 2: Convert to fraction form
    20,813.16/31,180.86 = 16,186.44/x
  3. Step 3: Cross multiply
    20,813.16x = 31,180.86 × 16,186.44
  4. Step 4: Simplify right side
    20,813.16x = 504,707,119.54
  5. Step 5: Solve for x
    x = 504,707,119.54/20,813.16
  6. Step 6: Final answer
    x = 24,249.42

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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.