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Finding the Fourth Proportional to 23,571.60, 35,356.44 and 7,989.20

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Solution

The fourth proportional to 23,571.60, 35,356.44 and 7,989.20 is: 11,983.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,571.60 : 35,356.44 = 7,989.20 : x
  2. Step 2: Convert to fraction form
    23,571.60/35,356.44 = 7,989.20/x
  3. Step 3: Cross multiply
    23,571.60x = 35,356.44 × 7,989.20
  4. Step 4: Simplify right side
    23,571.60x = 282,469,670.45
  5. Step 5: Solve for x
    x = 282,469,670.45/23,571.60
  6. Step 6: Final answer
    x = 11,983.47

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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.