Home / 18,988.16-28,363.84-14,067.41

Finding the Fourth Proportional to 18,988.16, 28,363.84 and 14,067.41

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Solution

The fourth proportional to 18,988.16, 28,363.84 and 14,067.41 is: 21,013.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.16 : 28,363.84 = 14,067.41 : x
  2. Step 2: Convert to fraction form
    18,988.16/28,363.84 = 14,067.41/x
  3. Step 3: Cross multiply
    18,988.16x = 28,363.84 × 14,067.41
  4. Step 4: Simplify right side
    18,988.16x = 399,005,589.47
  5. Step 5: Solve for x
    x = 399,005,589.47/18,988.16
  6. Step 6: Final answer
    x = 21,013.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.