Home / 20,207.15-30,310.79-7,059.53

Finding the Fourth Proportional to 20,207.15, 30,310.79 and 7,059.53

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Solution

The fourth proportional to 20,207.15, 30,310.79 and 7,059.53 is: 10,589.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.15 : 30,310.79 = 7,059.53 : x
  2. Step 2: Convert to fraction form
    20,207.15/30,310.79 = 7,059.53/x
  3. Step 3: Cross multiply
    20,207.15x = 30,310.79 × 7,059.53
  4. Step 4: Simplify right side
    20,207.15x = 213,979,770.95
  5. Step 5: Solve for x
    x = 213,979,770.95/20,207.15
  6. Step 6: Final answer
    x = 10,589.31

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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.