Home / 20,759.75-31,141.38-6,531.49

Finding the Fourth Proportional to 20,759.75, 31,141.38 and 6,531.49

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Solution

The fourth proportional to 20,759.75, 31,141.38 and 6,531.49 is: 9,797.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.75 : 31,141.38 = 6,531.49 : x
  2. Step 2: Convert to fraction form
    20,759.75/31,141.38 = 6,531.49/x
  3. Step 3: Cross multiply
    20,759.75x = 31,141.38 × 6,531.49
  4. Step 4: Simplify right side
    20,759.75x = 203,399,612.06
  5. Step 5: Solve for x
    x = 203,399,612.06/20,759.75
  6. Step 6: Final answer
    x = 9,797.79

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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.