Home / 30,394.10-45,561.99-21,481.62

Finding the Fourth Proportional to 30,394.10, 45,561.99 and 21,481.62

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Solution

The fourth proportional to 30,394.10, 45,561.99 and 21,481.62 is: 32,201.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,394.10 : 45,561.99 = 21,481.62 : x
  2. Step 2: Convert to fraction form
    30,394.10/45,561.99 = 21,481.62/x
  3. Step 3: Cross multiply
    30,394.10x = 45,561.99 × 21,481.62
  4. Step 4: Simplify right side
    30,394.10x = 978,745,355.62
  5. Step 5: Solve for x
    x = 978,745,355.62/30,394.10
  6. Step 6: Final answer
    x = 32,201.83

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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.