Home / 20,584.40-30,876.60-6,734.80

Finding the Fourth Proportional to 20,584.40, 30,876.60 and 6,734.80

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Solution

The fourth proportional to 20,584.40, 30,876.60 and 6,734.80 is: 10,102.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.40 : 30,876.60 = 6,734.80 : x
  2. Step 2: Convert to fraction form
    20,584.40/30,876.60 = 6,734.80/x
  3. Step 3: Cross multiply
    20,584.40x = 30,876.60 × 6,734.80
  4. Step 4: Simplify right side
    20,584.40x = 207,947,725.68
  5. Step 5: Solve for x
    x = 207,947,725.68/20,584.40
  6. Step 6: Final answer
    x = 10,102.20

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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.