Home / 30,403.49-41,939.33-18,295.61

Finding the Fourth Proportional to 30,403.49, 41,939.33 and 18,295.61

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Solution

The fourth proportional to 30,403.49, 41,939.33 and 18,295.61 is: 25,237.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,403.49 : 41,939.33 = 18,295.61 : x
  2. Step 2: Convert to fraction form
    30,403.49/41,939.33 = 18,295.61/x
  3. Step 3: Cross multiply
    30,403.49x = 41,939.33 × 18,295.61
  4. Step 4: Simplify right side
    30,403.49x = 767,305,324.17
  5. Step 5: Solve for x
    x = 767,305,324.17/30,403.49
  6. Step 6: Final answer
    x = 25,237.41

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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.