Home / 20,736-31,099.38-10,062.02

Finding the Fourth Proportional to 20,736, 31,099.38 and 10,062.02

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Solution

The fourth proportional to 20,736, 31,099.38 and 10,062.02 is: 15,090.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736 : 31,099.38 = 10,062.02 : x
  2. Step 2: Convert to fraction form
    20,736/31,099.38 = 10,062.02/x
  3. Step 3: Cross multiply
    20,736x = 31,099.38 × 10,062.02
  4. Step 4: Simplify right side
    20,736x = 312,922,623.56
  5. Step 5: Solve for x
    x = 312,922,623.56/20,736
  6. Step 6: Final answer
    x = 15,090.79

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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.