Home / 38,206.20-57,315.06-11,913

Finding the Fourth Proportional to 38,206.20, 57,315.06 and 11,913

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Solution

The fourth proportional to 38,206.20, 57,315.06 and 11,913 is: 17,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,206.20 : 57,315.06 = 11,913 : x
  2. Step 2: Convert to fraction form
    38,206.20/57,315.06 = 11,913/x
  3. Step 3: Cross multiply
    38,206.20x = 57,315.06 × 11,913
  4. Step 4: Simplify right side
    38,206.20x = 682,794,309.78
  5. Step 5: Solve for x
    x = 682,794,309.78/38,206.20
  6. Step 6: Final answer
    x = 17,871.30

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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.