Home / 22,020.93-30,388.77-11,949.66

Finding the Fourth Proportional to 22,020.93, 30,388.77 and 11,949.66

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Solution

The fourth proportional to 22,020.93, 30,388.77 and 11,949.66 is: 16,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,020.93 : 30,388.77 = 11,949.66 : x
  2. Step 2: Convert to fraction form
    22,020.93/30,388.77 = 11,949.66/x
  3. Step 3: Cross multiply
    22,020.93x = 30,388.77 × 11,949.66
  4. Step 4: Simplify right side
    22,020.93x = 363,135,469.32
  5. Step 5: Solve for x
    x = 363,135,469.32/22,020.93
  6. Step 6: Final answer
    x = 16,490.47

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1.5x scale

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.