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Finding the Fourth Proportional to 20,888, 31,332 and 6,296

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Solution

The fourth proportional to 20,888, 31,332 and 6,296 is: 9,444

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888 : 31,332 = 6,296 : x
  2. Step 2: Convert to fraction form
    20,888/31,332 = 6,296/x
  3. Step 3: Cross multiply
    20,888x = 31,332 × 6,296
  4. Step 4: Simplify right side
    20,888x = 197,266,272
  5. Step 5: Solve for x
    x = 197,266,272/20,888
  6. Step 6: Final answer
    x = 9,444

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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.