Home / 18,739.69-27,972.82-16,375.05

Finding the Fourth Proportional to 18,739.69, 27,972.82 and 16,375.05

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Solution

The fourth proportional to 18,739.69, 27,972.82 and 16,375.05 is: 24,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.69 : 27,972.82 = 16,375.05 : x
  2. Step 2: Convert to fraction form
    18,739.69/27,972.82 = 16,375.05/x
  3. Step 3: Cross multiply
    18,739.69x = 27,972.82 × 16,375.05
  4. Step 4: Simplify right side
    18,739.69x = 458,056,326.14
  5. Step 5: Solve for x
    x = 458,056,326.14/18,739.69
  6. Step 6: Final answer
    x = 24,443.11

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1.5x scale

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.