Home / 21,236.68-31,844.10-9,539.86

Finding the Fourth Proportional to 21,236.68, 31,844.10 and 9,539.86

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Solution

The fourth proportional to 21,236.68, 31,844.10 and 9,539.86 is: 14,304.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,236.68 : 31,844.10 = 9,539.86 : x
  2. Step 2: Convert to fraction form
    21,236.68/31,844.10 = 9,539.86/x
  3. Step 3: Cross multiply
    21,236.68x = 31,844.10 × 9,539.86
  4. Step 4: Simplify right side
    21,236.68x = 303,788,255.83
  5. Step 5: Solve for x
    x = 303,788,255.83/21,236.68
  6. Step 6: Final answer
    x = 14,304.88

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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.