Home / 21,232.89-31,853.87-7,192.43

Finding the Fourth Proportional to 21,232.89, 31,853.87 and 7,192.43

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Solution

The fourth proportional to 21,232.89, 31,853.87 and 7,192.43 is: 10,790.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.89 : 31,853.87 = 7,192.43 : x
  2. Step 2: Convert to fraction form
    21,232.89/31,853.87 = 7,192.43/x
  3. Step 3: Cross multiply
    21,232.89x = 31,853.87 × 7,192.43
  4. Step 4: Simplify right side
    21,232.89x = 229,106,694.24
  5. Step 5: Solve for x
    x = 229,106,694.24/21,232.89
  6. Step 6: Final answer
    x = 10,790.18

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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.