Home / 28,723.08-39,635.82-16,149.72

Finding the Fourth Proportional to 28,723.08, 39,635.82 and 16,149.72

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Solution

The fourth proportional to 28,723.08, 39,635.82 and 16,149.72 is: 22,285.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723.08 : 39,635.82 = 16,149.72 : x
  2. Step 2: Convert to fraction form
    28,723.08/39,635.82 = 16,149.72/x
  3. Step 3: Cross multiply
    28,723.08x = 39,635.82 × 16,149.72
  4. Step 4: Simplify right side
    28,723.08x = 640,107,394.97
  5. Step 5: Solve for x
    x = 640,107,394.97/28,723.08
  6. Step 6: Final answer
    x = 22,285.47

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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.