Home / 30,028.68-41,442.66-21,650.04

Finding the Fourth Proportional to 30,028.68, 41,442.66 and 21,650.04

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Solution

The fourth proportional to 30,028.68, 41,442.66 and 21,650.04 is: 29,879.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,028.68 : 41,442.66 = 21,650.04 : x
  2. Step 2: Convert to fraction form
    30,028.68/41,442.66 = 21,650.04/x
  3. Step 3: Cross multiply
    30,028.68x = 41,442.66 × 21,650.04
  4. Step 4: Simplify right side
    30,028.68x = 897,235,246.71
  5. Step 5: Solve for x
    x = 897,235,246.71/30,028.68
  6. Step 6: Final answer
    x = 29,879.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.