Home / 21,990.78-32,949.18-14,183.19

Finding the Fourth Proportional to 21,990.78, 32,949.18 and 14,183.19

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Solution

The fourth proportional to 21,990.78, 32,949.18 and 14,183.19 is: 21,250.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,990.78 : 32,949.18 = 14,183.19 : x
  2. Step 2: Convert to fraction form
    21,990.78/32,949.18 = 14,183.19/x
  3. Step 3: Cross multiply
    21,990.78x = 32,949.18 × 14,183.19
  4. Step 4: Simplify right side
    21,990.78x = 467,324,480.28
  5. Step 5: Solve for x
    x = 467,324,480.28/21,990.78
  6. Step 6: Final answer
    x = 21,250.93

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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.