Home / 20,704.97-28,573.20-11,752.74

Finding the Fourth Proportional to 20,704.97, 28,573.20 and 11,752.74

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Solution

The fourth proportional to 20,704.97, 28,573.20 and 11,752.74 is: 16,218.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.97 : 28,573.20 = 11,752.74 : x
  2. Step 2: Convert to fraction form
    20,704.97/28,573.20 = 11,752.74/x
  3. Step 3: Cross multiply
    20,704.97x = 28,573.20 × 11,752.74
  4. Step 4: Simplify right side
    20,704.97x = 335,813,432.62
  5. Step 5: Solve for x
    x = 335,813,432.62/20,704.97
  6. Step 6: Final answer
    x = 16,218.98

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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.