Home / 20,804.26-31,209.03-8,152.42

Finding the Fourth Proportional to 20,804.26, 31,209.03 and 8,152.42

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Solution

The fourth proportional to 20,804.26, 31,209.03 and 8,152.42 is: 12,229.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804.26 : 31,209.03 = 8,152.42 : x
  2. Step 2: Convert to fraction form
    20,804.26/31,209.03 = 8,152.42/x
  3. Step 3: Cross multiply
    20,804.26x = 31,209.03 × 8,152.42
  4. Step 4: Simplify right side
    20,804.26x = 254,429,120.35
  5. Step 5: Solve for x
    x = 254,429,120.35/20,804.26
  6. Step 6: Final answer
    x = 12,229.66

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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.