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Finding the Fourth Proportional to 21,998.54, 33,001.20 and 7,203.89

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Solution

The fourth proportional to 21,998.54, 33,001.20 and 7,203.89 is: 10,806.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.54 : 33,001.20 = 7,203.89 : x
  2. Step 2: Convert to fraction form
    21,998.54/33,001.20 = 7,203.89/x
  3. Step 3: Cross multiply
    21,998.54x = 33,001.20 × 7,203.89
  4. Step 4: Simplify right side
    21,998.54x = 237,737,014.67
  5. Step 5: Solve for x
    x = 237,737,014.67/21,998.54
  6. Step 6: Final answer
    x = 10,806.95

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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.