Home / 38,138.67-57,208.56-11,841.75

Finding the Fourth Proportional to 38,138.67, 57,208.56 and 11,841.75

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Solution

The fourth proportional to 38,138.67, 57,208.56 and 11,841.75 is: 17,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,138.67 : 57,208.56 = 11,841.75 : x
  2. Step 2: Convert to fraction form
    38,138.67/57,208.56 = 11,841.75/x
  3. Step 3: Cross multiply
    38,138.67x = 57,208.56 × 11,841.75
  4. Step 4: Simplify right side
    38,138.67x = 677,449,465.38
  5. Step 5: Solve for x
    x = 677,449,465.38/38,138.67
  6. Step 6: Final answer
    x = 17,762.80

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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.