Home / 31,543.24-47,322.46-11,821.97

Finding the Fourth Proportional to 31,543.24, 47,322.46 and 11,821.97

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Solution

The fourth proportional to 31,543.24, 47,322.46 and 11,821.97 is: 17,735.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,543.24 : 47,322.46 = 11,821.97 : x
  2. Step 2: Convert to fraction form
    31,543.24/47,322.46 = 11,821.97/x
  3. Step 3: Cross multiply
    31,543.24x = 47,322.46 × 11,821.97
  4. Step 4: Simplify right side
    31,543.24x = 559,444,702.45
  5. Step 5: Solve for x
    x = 559,444,702.45/31,543.24
  6. Step 6: Final answer
    x = 17,735.80

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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.