Home / 18,631.15-27,951.29-15,305.02

Finding the Fourth Proportional to 18,631.15, 27,951.29 and 15,305.02

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Solution

The fourth proportional to 18,631.15, 27,951.29 and 15,305.02 is: 22,961.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.15 : 27,951.29 = 15,305.02 : x
  2. Step 2: Convert to fraction form
    18,631.15/27,951.29 = 15,305.02/x
  3. Step 3: Cross multiply
    18,631.15x = 27,951.29 × 15,305.02
  4. Step 4: Simplify right side
    18,631.15x = 427,795,052.48
  5. Step 5: Solve for x
    x = 427,795,052.48/18,631.15
  6. Step 6: Final answer
    x = 22,961.28

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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.