Home / 20,308.16-30,464.40-5,517.30

Finding the Fourth Proportional to 20,308.16, 30,464.40 and 5,517.30

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Solution

The fourth proportional to 20,308.16, 30,464.40 and 5,517.30 is: 8,276.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308.16 : 30,464.40 = 5,517.30 : x
  2. Step 2: Convert to fraction form
    20,308.16/30,464.40 = 5,517.30/x
  3. Step 3: Cross multiply
    20,308.16x = 30,464.40 × 5,517.30
  4. Step 4: Simplify right side
    20,308.16x = 168,081,234.12
  5. Step 5: Solve for x
    x = 168,081,234.12/20,308.16
  6. Step 6: Final answer
    x = 8,276.54

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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.