Home / 40,821.11-61,233.95-12,745.04

Finding the Fourth Proportional to 40,821.11, 61,233.95 and 12,745.04

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Solution

The fourth proportional to 40,821.11, 61,233.95 and 12,745.04 is: 19,118.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,821.11 : 61,233.95 = 12,745.04 : x
  2. Step 2: Convert to fraction form
    40,821.11/61,233.95 = 12,745.04/x
  3. Step 3: Cross multiply
    40,821.11x = 61,233.95 × 12,745.04
  4. Step 4: Simplify right side
    40,821.11x = 780,429,231.47
  5. Step 5: Solve for x
    x = 780,429,231.47/40,821.11
  6. Step 6: Final answer
    x = 19,118.28

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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.