Home / 20,285.73-30,428.48-5,494.62

Finding the Fourth Proportional to 20,285.73, 30,428.48 and 5,494.62

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Solution

The fourth proportional to 20,285.73, 30,428.48 and 5,494.62 is: 8,241.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,285.73 : 30,428.48 = 5,494.62 : x
  2. Step 2: Convert to fraction form
    20,285.73/30,428.48 = 5,494.62/x
  3. Step 3: Cross multiply
    20,285.73x = 30,428.48 × 5,494.62
  4. Step 4: Simplify right side
    20,285.73x = 167,192,907.30
  5. Step 5: Solve for x
    x = 167,192,907.30/20,285.73
  6. Step 6: Final answer
    x = 8,241.90

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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.