Home / 38,129.80-57,194.70-11,842.60

Finding the Fourth Proportional to 38,129.80, 57,194.70 and 11,842.60

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Solution

The fourth proportional to 38,129.80, 57,194.70 and 11,842.60 is: 17,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,129.80 : 57,194.70 = 11,842.60 : x
  2. Step 2: Convert to fraction form
    38,129.80/57,194.70 = 11,842.60/x
  3. Step 3: Cross multiply
    38,129.80x = 57,194.70 × 11,842.60
  4. Step 4: Simplify right side
    38,129.80x = 677,333,954.22
  5. Step 5: Solve for x
    x = 677,333,954.22/38,129.80
  6. Step 6: Final answer
    x = 17,763.90

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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.