Home / 39,813.41-54,942.77-21,907.96

Finding the Fourth Proportional to 39,813.41, 54,942.77 and 21,907.96

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Solution

The fourth proportional to 39,813.41, 54,942.77 and 21,907.96 is: 30,233.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,813.41 : 54,942.77 = 21,907.96 : x
  2. Step 2: Convert to fraction form
    39,813.41/54,942.77 = 21,907.96/x
  3. Step 3: Cross multiply
    39,813.41x = 54,942.77 × 21,907.96
  4. Step 4: Simplify right side
    39,813.41x = 1,203,684,007.45
  5. Step 5: Solve for x
    x = 1,203,684,007.45/39,813.41
  6. Step 6: Final answer
    x = 30,233.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.