Home / 30,198.36-41,678.70-17,620.68

Finding the Fourth Proportional to 30,198.36, 41,678.70 and 17,620.68

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Solution

The fourth proportional to 30,198.36, 41,678.70 and 17,620.68 is: 24,319.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,198.36 : 41,678.70 = 17,620.68 : x
  2. Step 2: Convert to fraction form
    30,198.36/41,678.70 = 17,620.68/x
  3. Step 3: Cross multiply
    30,198.36x = 41,678.70 × 17,620.68
  4. Step 4: Simplify right side
    30,198.36x = 734,407,035.52
  5. Step 5: Solve for x
    x = 734,407,035.52/30,198.36
  6. Step 6: Final answer
    x = 24,319.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.