Home / 28,845.40-43,272.60-9,122.08

Finding the Fourth Proportional to 28,845.40, 43,272.60 and 9,122.08

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Solution

The fourth proportional to 28,845.40, 43,272.60 and 9,122.08 is: 13,684.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,845.40 : 43,272.60 = 9,122.08 : x
  2. Step 2: Convert to fraction form
    28,845.40/43,272.60 = 9,122.08/x
  3. Step 3: Cross multiply
    28,845.40x = 43,272.60 × 9,122.08
  4. Step 4: Simplify right side
    28,845.40x = 394,736,119.01
  5. Step 5: Solve for x
    x = 394,736,119.01/28,845.40
  6. Step 6: Final answer
    x = 13,684.54

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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.