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Finding the Fourth Proportional to 20,248, 30,372 and 5,656

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Solution

The fourth proportional to 20,248, 30,372 and 5,656 is: 8,484

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248 : 30,372 = 5,656 : x
  2. Step 2: Convert to fraction form
    20,248/30,372 = 5,656/x
  3. Step 3: Cross multiply
    20,248x = 30,372 × 5,656
  4. Step 4: Simplify right side
    20,248x = 171,784,032
  5. Step 5: Solve for x
    x = 171,784,032/20,248
  6. Step 6: Final answer
    x = 8,484

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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.