Home / 21,092.50-31,644.04-6,301.36

Finding the Fourth Proportional to 21,092.50, 31,644.04 and 6,301.36

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Solution

The fourth proportional to 21,092.50, 31,644.04 and 6,301.36 is: 9,453.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092.50 : 31,644.04 = 6,301.36 : x
  2. Step 2: Convert to fraction form
    21,092.50/31,644.04 = 6,301.36/x
  3. Step 3: Cross multiply
    21,092.50x = 31,644.04 × 6,301.36
  4. Step 4: Simplify right side
    21,092.50x = 199,400,487.89
  5. Step 5: Solve for x
    x = 199,400,487.89/21,092.50
  6. Step 6: Final answer
    x = 9,453.62

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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.