Home / 28,976.64-43,464.96-18,654

Finding the Fourth Proportional to 28,976.64, 43,464.96 and 18,654

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Solution

The fourth proportional to 28,976.64, 43,464.96 and 18,654 is: 27,981

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976.64 : 43,464.96 = 18,654 : x
  2. Step 2: Convert to fraction form
    28,976.64/43,464.96 = 18,654/x
  3. Step 3: Cross multiply
    28,976.64x = 43,464.96 × 18,654
  4. Step 4: Simplify right side
    28,976.64x = 810,795,363.84
  5. Step 5: Solve for x
    x = 810,795,363.84/28,976.64
  6. Step 6: Final answer
    x = 27,981

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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.