Home / 20,086.64-30,131.49-6,759.69

Finding the Fourth Proportional to 20,086.64, 30,131.49 and 6,759.69

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Solution

The fourth proportional to 20,086.64, 30,131.49 and 6,759.69 is: 10,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.64 : 30,131.49 = 6,759.69 : x
  2. Step 2: Convert to fraction form
    20,086.64/30,131.49 = 6,759.69/x
  3. Step 3: Cross multiply
    20,086.64x = 30,131.49 × 6,759.69
  4. Step 4: Simplify right side
    20,086.64x = 203,679,531.64
  5. Step 5: Solve for x
    x = 203,679,531.64/20,086.64
  6. Step 6: Final answer
    x = 10,140.05

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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.