Home / 31,093.08-42,908.64-17,664.48

Finding the Fourth Proportional to 31,093.08, 42,908.64 and 17,664.48

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Solution

The fourth proportional to 31,093.08, 42,908.64 and 17,664.48 is: 24,377.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,093.08 : 42,908.64 = 17,664.48 : x
  2. Step 2: Convert to fraction form
    31,093.08/42,908.64 = 17,664.48/x
  3. Step 3: Cross multiply
    31,093.08x = 42,908.64 × 17,664.48
  4. Step 4: Simplify right side
    31,093.08x = 757,958,813.11
  5. Step 5: Solve for x
    x = 757,958,813.11/31,093.08
  6. Step 6: Final answer
    x = 24,377.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.