Home / 38,140.03-57,219.32-11,845

Finding the Fourth Proportional to 38,140.03, 57,219.32 and 11,845

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Solution

The fourth proportional to 38,140.03, 57,219.32 and 11,845 is: 17,770.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,140.03 : 57,219.32 = 11,845 : x
  2. Step 2: Convert to fraction form
    38,140.03/57,219.32 = 11,845/x
  3. Step 3: Cross multiply
    38,140.03x = 57,219.32 × 11,845
  4. Step 4: Simplify right side
    38,140.03x = 677,762,845.40
  5. Step 5: Solve for x
    x = 677,762,845.40/38,140.03
  6. Step 6: Final answer
    x = 17,770.38

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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.