Home / 20,161.34-30,245.66-8,308.52

Finding the Fourth Proportional to 20,161.34, 30,245.66 and 8,308.52

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Solution

The fourth proportional to 20,161.34, 30,245.66 and 8,308.52 is: 12,464.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.34 : 30,245.66 = 8,308.52 : x
  2. Step 2: Convert to fraction form
    20,161.34/30,245.66 = 8,308.52/x
  3. Step 3: Cross multiply
    20,161.34x = 30,245.66 × 8,308.52
  4. Step 4: Simplify right side
    20,161.34x = 251,296,671.02
  5. Step 5: Solve for x
    x = 251,296,671.02/20,161.34
  6. Step 6: Final answer
    x = 12,464.28

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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.