Home / 20,731.11-28,625.82-16,903.38

Finding the Fourth Proportional to 20,731.11, 28,625.82 and 16,903.38

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Solution

The fourth proportional to 20,731.11, 28,625.82 and 16,903.38 is: 23,340.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731.11 : 28,625.82 = 16,903.38 : x
  2. Step 2: Convert to fraction form
    20,731.11/28,625.82 = 16,903.38/x
  3. Step 3: Cross multiply
    20,731.11x = 28,625.82 × 16,903.38
  4. Step 4: Simplify right side
    20,731.11x = 483,873,113.27
  5. Step 5: Solve for x
    x = 483,873,113.27/20,731.11
  6. Step 6: Final answer
    x = 23,340.43

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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.