Home / 28,336.82-39,106.12-16,397.85

Finding the Fourth Proportional to 28,336.82, 39,106.12 and 16,397.85

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Solution

The fourth proportional to 28,336.82, 39,106.12 and 16,397.85 is: 22,629.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.82 : 39,106.12 = 16,397.85 : x
  2. Step 2: Convert to fraction form
    28,336.82/39,106.12 = 16,397.85/x
  3. Step 3: Cross multiply
    28,336.82x = 39,106.12 × 16,397.85
  4. Step 4: Simplify right side
    28,336.82x = 641,256,248.85
  5. Step 5: Solve for x
    x = 641,256,248.85/28,336.82
  6. Step 6: Final answer
    x = 22,629.79

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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.