Home / 16,935.30-25,418.54-8,621.25

Finding the Fourth Proportional to 16,935.30, 25,418.54 and 8,621.25

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Solution

The fourth proportional to 16,935.30, 25,418.54 and 8,621.25 is: 12,939.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,935.30 : 25,418.54 = 8,621.25 : x
  2. Step 2: Convert to fraction form
    16,935.30/25,418.54 = 8,621.25/x
  3. Step 3: Cross multiply
    16,935.30x = 25,418.54 × 8,621.25
  4. Step 4: Simplify right side
    16,935.30x = 219,139,544.87
  5. Step 5: Solve for x
    x = 219,139,544.87/16,935.30
  6. Step 6: Final answer
    x = 12,939.81

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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.