Home / 20,304.86-30,469.58-8,618.08

Finding the Fourth Proportional to 20,304.86, 30,469.58 and 8,618.08

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Solution

The fourth proportional to 20,304.86, 30,469.58 and 8,618.08 is: 12,932.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.86 : 30,469.58 = 8,618.08 : x
  2. Step 2: Convert to fraction form
    20,304.86/30,469.58 = 8,618.08/x
  3. Step 3: Cross multiply
    20,304.86x = 30,469.58 × 8,618.08
  4. Step 4: Simplify right side
    20,304.86x = 262,589,125.66
  5. Step 5: Solve for x
    x = 262,589,125.66/20,304.86
  6. Step 6: Final answer
    x = 12,932.33

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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.