Home / 31,568.04-43,571.16-19,640.52

Finding the Fourth Proportional to 31,568.04, 43,571.16 and 19,640.52

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Solution

The fourth proportional to 31,568.04, 43,571.16 and 19,640.52 is: 27,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,568.04 : 43,571.16 = 19,640.52 : x
  2. Step 2: Convert to fraction form
    31,568.04/43,571.16 = 19,640.52/x
  3. Step 3: Cross multiply
    31,568.04x = 43,571.16 × 19,640.52
  4. Step 4: Simplify right side
    31,568.04x = 855,760,239.40
  5. Step 5: Solve for x
    x = 855,760,239.40/31,568.04
  6. Step 6: Final answer
    x = 27,108.44

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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.