Home / 20,155.01-30,245.68-7,675.15

Finding the Fourth Proportional to 20,155.01, 30,245.68 and 7,675.15

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Solution

The fourth proportional to 20,155.01, 30,245.68 and 7,675.15 is: 11,517.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.01 : 30,245.68 = 7,675.15 : x
  2. Step 2: Convert to fraction form
    20,155.01/30,245.68 = 7,675.15/x
  3. Step 3: Cross multiply
    20,155.01x = 30,245.68 × 7,675.15
  4. Step 4: Simplify right side
    20,155.01x = 232,140,187.28
  5. Step 5: Solve for x
    x = 232,140,187.28/20,155.01
  6. Step 6: Final answer
    x = 11,517.74

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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.