Home / 39,813.03-54,942.18-21,907.59

Finding the Fourth Proportional to 39,813.03, 54,942.18 and 21,907.59

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Solution

The fourth proportional to 39,813.03, 54,942.18 and 21,907.59 is: 30,232.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,813.03 : 54,942.18 = 21,907.59 : x
  2. Step 2: Convert to fraction form
    39,813.03/54,942.18 = 21,907.59/x
  3. Step 3: Cross multiply
    39,813.03x = 54,942.18 × 21,907.59
  4. Step 4: Simplify right side
    39,813.03x = 1,203,650,753.15
  5. Step 5: Solve for x
    x = 1,203,650,753.15/39,813.03
  6. Step 6: Final answer
    x = 30,232.58

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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.