Home / 40,942.91-61,415.12-12,862.44

Finding the Fourth Proportional to 40,942.91, 61,415.12 and 12,862.44

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Solution

The fourth proportional to 40,942.91, 61,415.12 and 12,862.44 is: 19,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,942.91 : 61,415.12 = 12,862.44 : x
  2. Step 2: Convert to fraction form
    40,942.91/61,415.12 = 12,862.44/x
  3. Step 3: Cross multiply
    40,942.91x = 61,415.12 × 12,862.44
  4. Step 4: Simplify right side
    40,942.91x = 789,948,328.25
  5. Step 5: Solve for x
    x = 789,948,328.25/40,942.91
  6. Step 6: Final answer
    x = 19,293.90

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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.