Home / 31,188.19-43,044.56-19,862.57

Finding the Fourth Proportional to 31,188.19, 43,044.56 and 19,862.57

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Solution

The fourth proportional to 31,188.19, 43,044.56 and 19,862.57 is: 27,413.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,188.19 : 43,044.56 = 19,862.57 : x
  2. Step 2: Convert to fraction form
    31,188.19/43,044.56 = 19,862.57/x
  3. Step 3: Cross multiply
    31,188.19x = 43,044.56 × 19,862.57
  4. Step 4: Simplify right side
    31,188.19x = 854,975,538.50
  5. Step 5: Solve for x
    x = 854,975,538.50/31,188.19
  6. Step 6: Final answer
    x = 27,413.44

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