Home / 31,772.52-43,842.87-18,348.05

Finding the Fourth Proportional to 31,772.52, 43,842.87 and 18,348.05

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Solution

The fourth proportional to 31,772.52, 43,842.87 and 18,348.05 is: 25,318.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,772.52 : 43,842.87 = 18,348.05 : x
  2. Step 2: Convert to fraction form
    31,772.52/43,842.87 = 18,348.05/x
  3. Step 3: Cross multiply
    31,772.52x = 43,842.87 × 18,348.05
  4. Step 4: Simplify right side
    31,772.52x = 804,431,280.51
  5. Step 5: Solve for x
    x = 804,431,280.51/31,772.52
  6. Step 6: Final answer
    x = 25,318.46

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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.