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Finding the Fourth Proportional to 22,671, 33,921 and 20,368.92

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Solution

The fourth proportional to 22,671, 33,921 and 20,368.92 is: 30,476.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,671 : 33,921 = 20,368.92 : x
  2. Step 2: Convert to fraction form
    22,671/33,921 = 20,368.92/x
  3. Step 3: Cross multiply
    22,671x = 33,921 × 20,368.92
  4. Step 4: Simplify right side
    22,671x = 690,934,135.32
  5. Step 5: Solve for x
    x = 690,934,135.32/22,671
  6. Step 6: Final answer
    x = 30,476.56

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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.