Home / 27,420.24-41,112.54-10,781.90

Finding the Fourth Proportional to 27,420.24, 41,112.54 and 10,781.90

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Solution

The fourth proportional to 27,420.24, 41,112.54 and 10,781.90 is: 16,165.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.24 : 41,112.54 = 10,781.90 : x
  2. Step 2: Convert to fraction form
    27,420.24/41,112.54 = 10,781.90/x
  3. Step 3: Cross multiply
    27,420.24x = 41,112.54 × 10,781.90
  4. Step 4: Simplify right side
    27,420.24x = 443,271,295.03
  5. Step 5: Solve for x
    x = 443,271,295.03/27,420.24
  6. Step 6: Final answer
    x = 16,165.84

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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.