Home / 28,380.36-39,163.97-16,895.22

Finding the Fourth Proportional to 28,380.36, 39,163.97 and 16,895.22

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Solution

The fourth proportional to 28,380.36, 39,163.97 and 16,895.22 is: 23,314.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,380.36 : 39,163.97 = 16,895.22 : x
  2. Step 2: Convert to fraction form
    28,380.36/39,163.97 = 16,895.22/x
  3. Step 3: Cross multiply
    28,380.36x = 39,163.97 × 16,895.22
  4. Step 4: Simplify right side
    28,380.36x = 661,683,804.75
  5. Step 5: Solve for x
    x = 661,683,804.75/28,380.36
  6. Step 6: Final answer
    x = 23,314.85

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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.