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Finding the Fourth Proportional to 28,796.32, 43,194.48 and 8,019.76

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Solution

The fourth proportional to 28,796.32, 43,194.48 and 8,019.76 is: 12,029.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,796.32 : 43,194.48 = 8,019.76 : x
  2. Step 2: Convert to fraction form
    28,796.32/43,194.48 = 8,019.76/x
  3. Step 3: Cross multiply
    28,796.32x = 43,194.48 × 8,019.76
  4. Step 4: Simplify right side
    28,796.32x = 346,409,362.92
  5. Step 5: Solve for x
    x = 346,409,362.92/28,796.32
  6. Step 6: Final answer
    x = 12,029.64

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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.