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Finding the Fourth Proportional to 32,015.20, 47,961.60 and 17,219.20

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Solution

The fourth proportional to 32,015.20, 47,961.60 and 17,219.20 is: 25,795.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,015.20 : 47,961.60 = 17,219.20 : x
  2. Step 2: Convert to fraction form
    32,015.20/47,961.60 = 17,219.20/x
  3. Step 3: Cross multiply
    32,015.20x = 47,961.60 × 17,219.20
  4. Step 4: Simplify right side
    32,015.20x = 825,860,382.72
  5. Step 5: Solve for x
    x = 825,860,382.72/32,015.20
  6. Step 6: Final answer
    x = 25,795.88

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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.