Home / 28,843.40-43,269.60-9,120.08

Finding the Fourth Proportional to 28,843.40, 43,269.60 and 9,120.08

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Solution

The fourth proportional to 28,843.40, 43,269.60 and 9,120.08 is: 13,681.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,843.40 : 43,269.60 = 9,120.08 : x
  2. Step 2: Convert to fraction form
    28,843.40/43,269.60 = 9,120.08/x
  3. Step 3: Cross multiply
    28,843.40x = 43,269.60 × 9,120.08
  4. Step 4: Simplify right side
    28,843.40x = 394,622,213.57
  5. Step 5: Solve for x
    x = 394,622,213.57/28,843.40
  6. Step 6: Final answer
    x = 13,681.54

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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.