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Finding the Fourth Proportional to 20,668, 31,002 and 6,076

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Solution

The fourth proportional to 20,668, 31,002 and 6,076 is: 9,114

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668 : 31,002 = 6,076 : x
  2. Step 2: Convert to fraction form
    20,668/31,002 = 6,076/x
  3. Step 3: Cross multiply
    20,668x = 31,002 × 6,076
  4. Step 4: Simplify right side
    20,668x = 188,368,152
  5. Step 5: Solve for x
    x = 188,368,152/20,668
  6. Step 6: Final answer
    x = 9,114

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.