Home / 27,824.40-41,740.20-13,791.60

Finding the Fourth Proportional to 27,824.40, 41,740.20 and 13,791.60

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Solution

The fourth proportional to 27,824.40, 41,740.20 and 13,791.60 is: 20,689.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,824.40 : 41,740.20 = 13,791.60 : x
  2. Step 2: Convert to fraction form
    27,824.40/41,740.20 = 13,791.60/x
  3. Step 3: Cross multiply
    27,824.40x = 41,740.20 × 13,791.60
  4. Step 4: Simplify right side
    27,824.40x = 575,664,142.32
  5. Step 5: Solve for x
    x = 575,664,142.32/27,824.40
  6. Step 6: Final answer
    x = 20,689.18

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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.