Home / 20,161.07-30,246.69-14,249.57

Finding the Fourth Proportional to 20,161.07, 30,246.69 and 14,249.57

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Solution

The fourth proportional to 20,161.07, 30,246.69 and 14,249.57 is: 21,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.07 : 30,246.69 = 14,249.57 : x
  2. Step 2: Convert to fraction form
    20,161.07/30,246.69 = 14,249.57/x
  3. Step 3: Cross multiply
    20,161.07x = 30,246.69 × 14,249.57
  4. Step 4: Simplify right side
    20,161.07x = 431,002,326.42
  5. Step 5: Solve for x
    x = 431,002,326.42/20,161.07
  6. Step 6: Final answer
    x = 21,377.95

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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.