Home / 39,771.80-54,884.94-21,866.75

Finding the Fourth Proportional to 39,771.80, 54,884.94 and 21,866.75

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Solution

The fourth proportional to 39,771.80, 54,884.94 and 21,866.75 is: 30,176.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,771.80 : 54,884.94 = 21,866.75 : x
  2. Step 2: Convert to fraction form
    39,771.80/54,884.94 = 21,866.75/x
  3. Step 3: Cross multiply
    39,771.80x = 54,884.94 × 21,866.75
  4. Step 4: Simplify right side
    39,771.80x = 1,200,154,987.32
  5. Step 5: Solve for x
    x = 1,200,154,987.32/39,771.80
  6. Step 6: Final answer
    x = 30,176.03

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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.