Home / 31,285.36-43,174.32-17,137.28

Finding the Fourth Proportional to 31,285.36, 43,174.32 and 17,137.28

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Solution

The fourth proportional to 31,285.36, 43,174.32 and 17,137.28 is: 23,649.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,285.36 : 43,174.32 = 17,137.28 : x
  2. Step 2: Convert to fraction form
    31,285.36/43,174.32 = 17,137.28/x
  3. Step 3: Cross multiply
    31,285.36x = 43,174.32 × 17,137.28
  4. Step 4: Simplify right side
    31,285.36x = 739,890,410.65
  5. Step 5: Solve for x
    x = 739,890,410.65/31,285.36
  6. Step 6: Final answer
    x = 23,649.73

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1.5x scale

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.