Home / 18,090.86-27,131.90-4,943.30

Finding the Fourth Proportional to 18,090.86, 27,131.90 and 4,943.30

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Solution

The fourth proportional to 18,090.86, 27,131.90 and 4,943.30 is: 7,413.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.86 : 27,131.90 = 4,943.30 : x
  2. Step 2: Convert to fraction form
    18,090.86/27,131.90 = 4,943.30/x
  3. Step 3: Cross multiply
    18,090.86x = 27,131.90 × 4,943.30
  4. Step 4: Simplify right side
    18,090.86x = 134,121,121.27
  5. Step 5: Solve for x
    x = 134,121,121.27/18,090.86
  6. Step 6: Final answer
    x = 7,413.75

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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.