Home / 38,114.78-57,177.70-11,821.64

Finding the Fourth Proportional to 38,114.78, 57,177.70 and 11,821.64

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Solution

The fourth proportional to 38,114.78, 57,177.70 and 11,821.64 is: 17,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,114.78 : 57,177.70 = 11,821.64 : x
  2. Step 2: Convert to fraction form
    38,114.78/57,177.70 = 11,821.64/x
  3. Step 3: Cross multiply
    38,114.78x = 57,177.70 × 11,821.64
  4. Step 4: Simplify right side
    38,114.78x = 675,934,185.43
  5. Step 5: Solve for x
    x = 675,934,185.43/38,114.78
  6. Step 6: Final answer
    x = 17,734.18

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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.