Home / 40,991.11-61,488.88-12,913.37

Finding the Fourth Proportional to 40,991.11, 61,488.88 and 12,913.37

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Solution

The fourth proportional to 40,991.11, 61,488.88 and 12,913.37 is: 19,370.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,991.11 : 61,488.88 = 12,913.37 : x
  2. Step 2: Convert to fraction form
    40,991.11/61,488.88 = 12,913.37/x
  3. Step 3: Cross multiply
    40,991.11x = 61,488.88 × 12,913.37
  4. Step 4: Simplify right side
    40,991.11x = 794,028,658.33
  5. Step 5: Solve for x
    x = 794,028,658.33/40,991.11
  6. Step 6: Final answer
    x = 19,370.76

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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.