Home / 28,626.22-39,507.85-16,689.66

Finding the Fourth Proportional to 28,626.22, 39,507.85 and 16,689.66

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Solution

The fourth proportional to 28,626.22, 39,507.85 and 16,689.66 is: 23,033.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,626.22 : 39,507.85 = 16,689.66 : x
  2. Step 2: Convert to fraction form
    28,626.22/39,507.85 = 16,689.66/x
  3. Step 3: Cross multiply
    28,626.22x = 39,507.85 × 16,689.66
  4. Step 4: Simplify right side
    28,626.22x = 659,372,583.83
  5. Step 5: Solve for x
    x = 659,372,583.83/28,626.22
  6. Step 6: Final answer
    x = 23,033.87

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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.