Home / 28,575.44-39,435.32-16,636.85

Finding the Fourth Proportional to 28,575.44, 39,435.32 and 16,636.85

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Solution

The fourth proportional to 28,575.44, 39,435.32 and 16,636.85 is: 22,959.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,575.44 : 39,435.32 = 16,636.85 : x
  2. Step 2: Convert to fraction form
    28,575.44/39,435.32 = 16,636.85/x
  3. Step 3: Cross multiply
    28,575.44x = 39,435.32 × 16,636.85
  4. Step 4: Simplify right side
    28,575.44x = 656,079,503.54
  5. Step 5: Solve for x
    x = 656,079,503.54/28,575.44
  6. Step 6: Final answer
    x = 22,959.56

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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.