Home / 28,711.82-43,067.73-16,989.50

Finding the Fourth Proportional to 28,711.82, 43,067.73 and 16,989.50

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Solution

The fourth proportional to 28,711.82, 43,067.73 and 16,989.50 is: 25,484.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711.82 : 43,067.73 = 16,989.50 : x
  2. Step 2: Convert to fraction form
    28,711.82/43,067.73 = 16,989.50/x
  3. Step 3: Cross multiply
    28,711.82x = 43,067.73 × 16,989.50
  4. Step 4: Simplify right side
    28,711.82x = 731,699,198.84
  5. Step 5: Solve for x
    x = 731,699,198.84/28,711.82
  6. Step 6: Final answer
    x = 25,484.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.