Home / 22,178.26-33,279.81-11,789.74

Finding the Fourth Proportional to 22,178.26, 33,279.81 and 11,789.74

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Solution

The fourth proportional to 22,178.26, 33,279.81 and 11,789.74 is: 17,691.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,178.26 : 33,279.81 = 11,789.74 : x
  2. Step 2: Convert to fraction form
    22,178.26/33,279.81 = 11,789.74/x
  3. Step 3: Cross multiply
    22,178.26x = 33,279.81 × 11,789.74
  4. Step 4: Simplify right side
    22,178.26x = 392,360,307.15
  5. Step 5: Solve for x
    x = 392,360,307.15/22,178.26
  6. Step 6: Final answer
    x = 17,691.21

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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.