Home / 38,383.40-57,571.32-13,418.84

Finding the Fourth Proportional to 38,383.40, 57,571.32 and 13,418.84

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Solution

The fourth proportional to 38,383.40, 57,571.32 and 13,418.84 is: 20,126.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,383.40 : 57,571.32 = 13,418.84 : x
  2. Step 2: Convert to fraction form
    38,383.40/57,571.32 = 13,418.84/x
  3. Step 3: Cross multiply
    38,383.40x = 57,571.32 × 13,418.84
  4. Step 4: Simplify right side
    38,383.40x = 772,540,331.67
  5. Step 5: Solve for x
    x = 772,540,331.67/38,383.40
  6. Step 6: Final answer
    x = 20,126.94

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1.5x scale

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.