Home / 19,831.19-27,365.31-11,331.62

Finding the Fourth Proportional to 19,831.19, 27,365.31 and 11,331.62

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Solution

The fourth proportional to 19,831.19, 27,365.31 and 11,331.62 is: 15,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.19 : 27,365.31 = 11,331.62 : x
  2. Step 2: Convert to fraction form
    19,831.19/27,365.31 = 11,331.62/x
  3. Step 3: Cross multiply
    19,831.19x = 27,365.31 × 11,331.62
  4. Step 4: Simplify right side
    19,831.19x = 310,093,294.10
  5. Step 5: Solve for x
    x = 310,093,294.10/19,831.19
  6. Step 6: Final answer
    x = 15,636.65

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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.