Home / 20,704.61-31,014.09-10,813.91

Finding the Fourth Proportional to 20,704.61, 31,014.09 and 10,813.91

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Solution

The fourth proportional to 20,704.61, 31,014.09 and 10,813.91 is: 16,198.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.61 : 31,014.09 = 10,813.91 : x
  2. Step 2: Convert to fraction form
    20,704.61/31,014.09 = 10,813.91/x
  3. Step 3: Cross multiply
    20,704.61x = 31,014.09 × 10,813.91
  4. Step 4: Simplify right side
    20,704.61x = 335,383,422.92
  5. Step 5: Solve for x
    x = 335,383,422.92/20,704.61
  6. Step 6: Final answer
    x = 16,198.49

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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.