Home / 16,858.31-25,285.30-5,170.55

Finding the Fourth Proportional to 16,858.31, 25,285.30 and 5,170.55

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Solution

The fourth proportional to 16,858.31, 25,285.30 and 5,170.55 is: 7,755.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,858.31 : 25,285.30 = 5,170.55 : x
  2. Step 2: Convert to fraction form
    16,858.31/25,285.30 = 5,170.55/x
  3. Step 3: Cross multiply
    16,858.31x = 25,285.30 × 5,170.55
  4. Step 4: Simplify right side
    16,858.31x = 130,738,768.56
  5. Step 5: Solve for x
    x = 130,738,768.56/16,858.31
  6. Step 6: Final answer
    x = 7,755.16

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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.