Home / 22,021.62-30,389.68-11,949.81

Finding the Fourth Proportional to 22,021.62, 30,389.68 and 11,949.81

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Solution

The fourth proportional to 22,021.62, 30,389.68 and 11,949.81 is: 16,490.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.62 : 30,389.68 = 11,949.81 : x
  2. Step 2: Convert to fraction form
    22,021.62/30,389.68 = 11,949.81/x
  3. Step 3: Cross multiply
    22,021.62x = 30,389.68 × 11,949.81
  4. Step 4: Simplify right side
    22,021.62x = 363,150,802.94
  5. Step 5: Solve for x
    x = 363,150,802.94/22,021.62
  6. Step 6: Final answer
    x = 16,490.65

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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.