Home / 20,584.56-30,876.78-7,436.91

Finding the Fourth Proportional to 20,584.56, 30,876.78 and 7,436.91

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Solution

The fourth proportional to 20,584.56, 30,876.78 and 7,436.91 is: 11,155.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.56 : 30,876.78 = 7,436.91 : x
  2. Step 2: Convert to fraction form
    20,584.56/30,876.78 = 7,436.91/x
  3. Step 3: Cross multiply
    20,584.56x = 30,876.78 × 7,436.91
  4. Step 4: Simplify right side
    20,584.56x = 229,627,833.95
  5. Step 5: Solve for x
    x = 229,627,833.95/20,584.56
  6. Step 6: Final answer
    x = 11,155.34

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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.