Home / 39,699.01-54,785.60-21,794.33

Finding the Fourth Proportional to 39,699.01, 54,785.60 and 21,794.33

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Solution

The fourth proportional to 39,699.01, 54,785.60 and 21,794.33 is: 30,076.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,699.01 : 54,785.60 = 21,794.33 : x
  2. Step 2: Convert to fraction form
    39,699.01/54,785.60 = 21,794.33/x
  3. Step 3: Cross multiply
    39,699.01x = 54,785.60 × 21,794.33
  4. Step 4: Simplify right side
    39,699.01x = 1,194,015,555.37
  5. Step 5: Solve for x
    x = 1,194,015,555.37/39,699.01
  6. Step 6: Final answer
    x = 30,076.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.