Home / 38,179.51-57,255.54-13,212.78

Finding the Fourth Proportional to 38,179.51, 57,255.54 and 13,212.78

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Solution

The fourth proportional to 38,179.51, 57,255.54 and 13,212.78 is: 19,814.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,179.51 : 57,255.54 = 13,212.78 : x
  2. Step 2: Convert to fraction form
    38,179.51/57,255.54 = 13,212.78/x
  3. Step 3: Cross multiply
    38,179.51x = 57,255.54 × 13,212.78
  4. Step 4: Simplify right side
    38,179.51x = 756,504,886.83
  5. Step 5: Solve for x
    x = 756,504,886.83/38,179.51
  6. Step 6: Final answer
    x = 19,814.42

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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.