Home / 30,204.80-41,684.87-18,721.97

Finding the Fourth Proportional to 30,204.80, 41,684.87 and 18,721.97

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Solution

The fourth proportional to 30,204.80, 41,684.87 and 18,721.97 is: 25,837.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,204.80 : 41,684.87 = 18,721.97 : x
  2. Step 2: Convert to fraction form
    30,204.80/41,684.87 = 18,721.97/x
  3. Step 3: Cross multiply
    30,204.80x = 41,684.87 × 18,721.97
  4. Step 4: Simplify right side
    30,204.80x = 780,422,827.64
  5. Step 5: Solve for x
    x = 780,422,827.64/30,204.80
  6. Step 6: Final answer
    x = 25,837.71

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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.