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Finding the Fourth Proportional to 36,489.86, 54,756.86 and 17,791

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Solution

The fourth proportional to 36,489.86, 54,756.86 and 17,791 is: 26,697.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,489.86 : 54,756.86 = 17,791 : x
  2. Step 2: Convert to fraction form
    36,489.86/54,756.86 = 17,791/x
  3. Step 3: Cross multiply
    36,489.86x = 54,756.86 × 17,791
  4. Step 4: Simplify right side
    36,489.86x = 974,179,296.26
  5. Step 5: Solve for x
    x = 974,179,296.26/36,489.86
  6. Step 6: Final answer
    x = 26,697.26

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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.