Home / 19,919.57-27,485.24-12,367.73

Finding the Fourth Proportional to 19,919.57, 27,485.24 and 12,367.73

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Solution

The fourth proportional to 19,919.57, 27,485.24 and 12,367.73 is: 17,065.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.57 : 27,485.24 = 12,367.73 : x
  2. Step 2: Convert to fraction form
    19,919.57/27,485.24 = 12,367.73/x
  3. Step 3: Cross multiply
    19,919.57x = 27,485.24 × 12,367.73
  4. Step 4: Simplify right side
    19,919.57x = 339,929,828.04
  5. Step 5: Solve for x
    x = 339,929,828.04/19,919.57
  6. Step 6: Final answer
    x = 17,065.12

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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.