Home / 22,161.76-33,256.50-11,489.20

Finding the Fourth Proportional to 22,161.76, 33,256.50 and 11,489.20

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Solution

The fourth proportional to 22,161.76, 33,256.50 and 11,489.20 is: 17,240.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,161.76 : 33,256.50 = 11,489.20 : x
  2. Step 2: Convert to fraction form
    22,161.76/33,256.50 = 11,489.20/x
  3. Step 3: Cross multiply
    22,161.76x = 33,256.50 × 11,489.20
  4. Step 4: Simplify right side
    22,161.76x = 382,090,579.80
  5. Step 5: Solve for x
    x = 382,090,579.80/22,161.76
  6. Step 6: Final answer
    x = 17,240.99

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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.