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Finding the Fourth Proportional to 22,077.71, 33,107.35 and 8,920.86

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Solution

The fourth proportional to 22,077.71, 33,107.35 and 8,920.86 is: 13,377.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,077.71 : 33,107.35 = 8,920.86 : x
  2. Step 2: Convert to fraction form
    22,077.71/33,107.35 = 8,920.86/x
  3. Step 3: Cross multiply
    22,077.71x = 33,107.35 × 8,920.86
  4. Step 4: Simplify right side
    22,077.71x = 295,346,034.32
  5. Step 5: Solve for x
    x = 295,346,034.32/22,077.71
  6. Step 6: Final answer
    x = 13,377.57

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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.