Home / 22,021.56-30,389.28-11,949.84

Finding the Fourth Proportional to 22,021.56, 30,389.28 and 11,949.84

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Solution

The fourth proportional to 22,021.56, 30,389.28 and 11,949.84 is: 16,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.56 : 30,389.28 = 11,949.84 : x
  2. Step 2: Convert to fraction form
    22,021.56/30,389.28 = 11,949.84/x
  3. Step 3: Cross multiply
    22,021.56x = 30,389.28 × 11,949.84
  4. Step 4: Simplify right side
    22,021.56x = 363,147,033.72
  5. Step 5: Solve for x
    x = 363,147,033.72/22,021.56
  6. Step 6: Final answer
    x = 16,490.52

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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.