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Finding the Fourth Proportional to 20,533.20, 30,799.71 and 8,044.40

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Solution

The fourth proportional to 20,533.20, 30,799.71 and 8,044.40 is: 12,066.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533.20 : 30,799.71 = 8,044.40 : x
  2. Step 2: Convert to fraction form
    20,533.20/30,799.71 = 8,044.40/x
  3. Step 3: Cross multiply
    20,533.20x = 30,799.71 × 8,044.40
  4. Step 4: Simplify right side
    20,533.20x = 247,765,212.33
  5. Step 5: Solve for x
    x = 247,765,212.33/20,533.20
  6. Step 6: Final answer
    x = 12,066.57

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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.