Home / 30,163.86-45,231.17-17,687.93

Finding the Fourth Proportional to 30,163.86, 45,231.17 and 17,687.93

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Solution

The fourth proportional to 30,163.86, 45,231.17 and 17,687.93 is: 26,523.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,163.86 : 45,231.17 = 17,687.93 : x
  2. Step 2: Convert to fraction form
    30,163.86/45,231.17 = 17,687.93/x
  3. Step 3: Cross multiply
    30,163.86x = 45,231.17 × 17,687.93
  4. Step 4: Simplify right side
    30,163.86x = 800,045,454.18
  5. Step 5: Solve for x
    x = 800,045,454.18/30,163.86
  6. Step 6: Final answer
    x = 26,523.31

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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.