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Finding the Fourth Proportional to 27,391.90, 37,802.60 and 15,450.88

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Solution

The fourth proportional to 27,391.90, 37,802.60 and 15,450.88 is: 21,323.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,391.90 : 37,802.60 = 15,450.88 : x
  2. Step 2: Convert to fraction form
    27,391.90/37,802.60 = 15,450.88/x
  3. Step 3: Cross multiply
    27,391.90x = 37,802.60 × 15,450.88
  4. Step 4: Simplify right side
    27,391.90x = 584,083,170.02
  5. Step 5: Solve for x
    x = 584,083,170.02/27,391.90
  6. Step 6: Final answer
    x = 21,323.21

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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.