Home / 19,993.15-29,989.71-10,135.24

Finding the Fourth Proportional to 19,993.15, 29,989.71 and 10,135.24

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Solution

The fourth proportional to 19,993.15, 29,989.71 and 10,135.24 is: 15,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.15 : 29,989.71 = 10,135.24 : x
  2. Step 2: Convert to fraction form
    19,993.15/29,989.71 = 10,135.24/x
  3. Step 3: Cross multiply
    19,993.15x = 29,989.71 × 10,135.24
  4. Step 4: Simplify right side
    19,993.15x = 303,952,908.38
  5. Step 5: Solve for x
    x = 303,952,908.38/19,993.15
  6. Step 6: Final answer
    x = 15,202.85

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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.