Home / 20,299.35-30,447.06-6,255.60

Finding the Fourth Proportional to 20,299.35, 30,447.06 and 6,255.60

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Solution

The fourth proportional to 20,299.35, 30,447.06 and 6,255.60 is: 9,382.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299.35 : 30,447.06 = 6,255.60 : x
  2. Step 2: Convert to fraction form
    20,299.35/30,447.06 = 6,255.60/x
  3. Step 3: Cross multiply
    20,299.35x = 30,447.06 × 6,255.60
  4. Step 4: Simplify right side
    20,299.35x = 190,464,790.68
  5. Step 5: Solve for x
    x = 190,464,790.68/20,299.35
  6. Step 6: Final answer
    x = 9,382.80

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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.