Home / 28,544.72-39,388.20-15,969.20

Finding the Fourth Proportional to 28,544.72, 39,388.20 and 15,969.20

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Solution

The fourth proportional to 28,544.72, 39,388.20 and 15,969.20 is: 22,035.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.72 : 39,388.20 = 15,969.20 : x
  2. Step 2: Convert to fraction form
    28,544.72/39,388.20 = 15,969.20/x
  3. Step 3: Cross multiply
    28,544.72x = 39,388.20 × 15,969.20
  4. Step 4: Simplify right side
    28,544.72x = 628,998,043.44
  5. Step 5: Solve for x
    x = 628,998,043.44/28,544.72
  6. Step 6: Final answer
    x = 22,035.53

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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.