Home / 19,620.39-27,081.63-12,067.95

Finding the Fourth Proportional to 19,620.39, 27,081.63 and 12,067.95

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Solution

The fourth proportional to 19,620.39, 27,081.63 and 12,067.95 is: 16,657.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.39 : 27,081.63 = 12,067.95 : x
  2. Step 2: Convert to fraction form
    19,620.39/27,081.63 = 12,067.95/x
  3. Step 3: Cross multiply
    19,620.39x = 27,081.63 × 12,067.95
  4. Step 4: Simplify right side
    19,620.39x = 326,819,756.76
  5. Step 5: Solve for x
    x = 326,819,756.76/19,620.39
  6. Step 6: Final answer
    x = 16,657.15

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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.