Home / 19,929.37-27,486.84-12,371.44

Finding the Fourth Proportional to 19,929.37, 27,486.84 and 12,371.44

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Solution

The fourth proportional to 19,929.37, 27,486.84 and 12,371.44 is: 17,062.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.37 : 27,486.84 = 12,371.44 : x
  2. Step 2: Convert to fraction form
    19,929.37/27,486.84 = 12,371.44/x
  3. Step 3: Cross multiply
    19,929.37x = 27,486.84 × 12,371.44
  4. Step 4: Simplify right side
    19,929.37x = 340,051,791.85
  5. Step 5: Solve for x
    x = 340,051,791.85/19,929.37
  6. Step 6: Final answer
    x = 17,062.85

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1.5x scale

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.