Home / 20,733.26-28,615.60-12,234.86

Finding the Fourth Proportional to 20,733.26, 28,615.60 and 12,234.86

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Solution

The fourth proportional to 20,733.26, 28,615.60 and 12,234.86 is: 16,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.26 : 28,615.60 = 12,234.86 : x
  2. Step 2: Convert to fraction form
    20,733.26/28,615.60 = 12,234.86/x
  3. Step 3: Cross multiply
    20,733.26x = 28,615.60 × 12,234.86
  4. Step 4: Simplify right side
    20,733.26x = 350,107,859.82
  5. Step 5: Solve for x
    x = 350,107,859.82/20,733.26
  6. Step 6: Final answer
    x = 16,886.29

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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.