Home / 22,128.68-33,177.64-11,429.13

Finding the Fourth Proportional to 22,128.68, 33,177.64 and 11,429.13

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Solution

The fourth proportional to 22,128.68, 33,177.64 and 11,429.13 is: 17,135.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,128.68 : 33,177.64 = 11,429.13 : x
  2. Step 2: Convert to fraction form
    22,128.68/33,177.64 = 11,429.13/x
  3. Step 3: Cross multiply
    22,128.68x = 33,177.64 × 11,429.13
  4. Step 4: Simplify right side
    22,128.68x = 379,191,454.24
  5. Step 5: Solve for x
    x = 379,191,454.24/22,128.68
  6. Step 6: Final answer
    x = 17,135.75

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1.5x scale

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.