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Finding the Fourth Proportional to 21,522, 32,283 and 6,930

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Solution

The fourth proportional to 21,522, 32,283 and 6,930 is: 10,395

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,522 : 32,283 = 6,930 : x
  2. Step 2: Convert to fraction form
    21,522/32,283 = 6,930/x
  3. Step 3: Cross multiply
    21,522x = 32,283 × 6,930
  4. Step 4: Simplify right side
    21,522x = 223,721,190
  5. Step 5: Solve for x
    x = 223,721,190/21,522
  6. Step 6: Final answer
    x = 10,395

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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.