Home / 28,836.85-43,255.01-9,115.42

Finding the Fourth Proportional to 28,836.85, 43,255.01 and 9,115.42

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Solution

The fourth proportional to 28,836.85, 43,255.01 and 9,115.42 is: 13,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.85 : 43,255.01 = 9,115.42 : x
  2. Step 2: Convert to fraction form
    28,836.85/43,255.01 = 9,115.42/x
  3. Step 3: Cross multiply
    28,836.85x = 43,255.01 × 9,115.42
  4. Step 4: Simplify right side
    28,836.85x = 394,287,583.25
  5. Step 5: Solve for x
    x = 394,287,583.25/28,836.85
  6. Step 6: Final answer
    x = 13,673.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.