Home / 22,021.36-30,389.22-11,949.72

Finding the Fourth Proportional to 22,021.36, 30,389.22 and 11,949.72

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Solution

The fourth proportional to 22,021.36, 30,389.22 and 11,949.72 is: 16,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.36 : 30,389.22 = 11,949.72 : x
  2. Step 2: Convert to fraction form
    22,021.36/30,389.22 = 11,949.72/x
  3. Step 3: Cross multiply
    22,021.36x = 30,389.22 × 11,949.72
  4. Step 4: Simplify right side
    22,021.36x = 363,142,670.02
  5. Step 5: Solve for x
    x = 363,142,670.02/22,021.36
  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.