Home / 20,933.17-31,371.96-15,360.43

Finding the Fourth Proportional to 20,933.17, 31,371.96 and 15,360.43

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Solution

The fourth proportional to 20,933.17, 31,371.96 and 15,360.43 is: 23,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.17 : 31,371.96 = 15,360.43 : x
  2. Step 2: Convert to fraction form
    20,933.17/31,371.96 = 15,360.43/x
  3. Step 3: Cross multiply
    20,933.17x = 31,371.96 × 15,360.43
  4. Step 4: Simplify right side
    20,933.17x = 481,886,795.54
  5. Step 5: Solve for x
    x = 481,886,795.54/20,933.17
  6. Step 6: Final answer
    x = 23,020.25

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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.