Home / 28,705.24-43,060.32-7,928.74

Finding the Fourth Proportional to 28,705.24, 43,060.32 and 7,928.74

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Solution

The fourth proportional to 28,705.24, 43,060.32 and 7,928.74 is: 11,893.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,705.24 : 43,060.32 = 7,928.74 : x
  2. Step 2: Convert to fraction form
    28,705.24/43,060.32 = 7,928.74/x
  3. Step 3: Cross multiply
    28,705.24x = 43,060.32 × 7,928.74
  4. Step 4: Simplify right side
    28,705.24x = 341,414,081.60
  5. Step 5: Solve for x
    x = 341,414,081.60/28,705.24
  6. Step 6: Final answer
    x = 11,893.79

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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.