Home / 22,021.14-30,389.09-11,949.51

Finding the Fourth Proportional to 22,021.14, 30,389.09 and 11,949.51

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Solution

The fourth proportional to 22,021.14, 30,389.09 and 11,949.51 is: 16,490.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.14 : 30,389.09 = 11,949.51 : x
  2. Step 2: Convert to fraction form
    22,021.14/30,389.09 = 11,949.51/x
  3. Step 3: Cross multiply
    22,021.14x = 30,389.09 × 11,949.51
  4. Step 4: Simplify right side
    22,021.14x = 363,134,675.10
  5. Step 5: Solve for x
    x = 363,134,675.10/22,021.14
  6. Step 6: Final answer
    x = 16,490.28

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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.