Home / 20,932.17-31,370.46-15,359.43

Finding the Fourth Proportional to 20,932.17, 31,370.46 and 15,359.43

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Solution

The fourth proportional to 20,932.17, 31,370.46 and 15,359.43 is: 23,018.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.17 : 31,370.46 = 15,359.43 : x
  2. Step 2: Convert to fraction form
    20,932.17/31,370.46 = 15,359.43/x
  3. Step 3: Cross multiply
    20,932.17x = 31,370.46 × 15,359.43
  4. Step 4: Simplify right side
    20,932.17x = 481,832,384.44
  5. Step 5: Solve for x
    x = 481,832,384.44/20,932.17
  6. Step 6: Final answer
    x = 23,018.75

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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.