Home / 20,336.20-30,512.46-8,649.16

Finding the Fourth Proportional to 20,336.20, 30,512.46 and 8,649.16

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Solution

The fourth proportional to 20,336.20, 30,512.46 and 8,649.16 is: 12,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.20 : 30,512.46 = 8,649.16 : x
  2. Step 2: Convert to fraction form
    20,336.20/30,512.46 = 8,649.16/x
  3. Step 3: Cross multiply
    20,336.20x = 30,512.46 × 8,649.16
  4. Step 4: Simplify right side
    20,336.20x = 263,907,148.53
  5. Step 5: Solve for x
    x = 263,907,148.53/20,336.20
  6. Step 6: Final answer
    x = 12,977.21

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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.