Home / 28,638.90-39,529.22-16,067.70

Finding the Fourth Proportional to 28,638.90, 39,529.22 and 16,067.70

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Solution

The fourth proportional to 28,638.90, 39,529.22 and 16,067.70 is: 22,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,638.90 : 39,529.22 = 16,067.70 : x
  2. Step 2: Convert to fraction form
    28,638.90/39,529.22 = 16,067.70/x
  3. Step 3: Cross multiply
    28,638.90x = 39,529.22 × 16,067.70
  4. Step 4: Simplify right side
    28,638.90x = 635,143,567.86
  5. Step 5: Solve for x
    x = 635,143,567.86/28,638.90
  6. Step 6: Final answer
    x = 22,177.65

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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.