Home / 20,102.73-30,155.34-6,774.60

Finding the Fourth Proportional to 20,102.73, 30,155.34 and 6,774.60

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Solution

The fourth proportional to 20,102.73, 30,155.34 and 6,774.60 is: 10,162.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102.73 : 30,155.34 = 6,774.60 : x
  2. Step 2: Convert to fraction form
    20,102.73/30,155.34 = 6,774.60/x
  3. Step 3: Cross multiply
    20,102.73x = 30,155.34 × 6,774.60
  4. Step 4: Simplify right side
    20,102.73x = 204,290,366.36
  5. Step 5: Solve for x
    x = 204,290,366.36/20,102.73
  6. Step 6: Final answer
    x = 10,162.32

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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.