Home / 39,839.06-54,977.46-21,933.70

Finding the Fourth Proportional to 39,839.06, 54,977.46 and 21,933.70

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Solution

The fourth proportional to 39,839.06, 54,977.46 and 21,933.70 is: 30,268.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,839.06 : 54,977.46 = 21,933.70 : x
  2. Step 2: Convert to fraction form
    39,839.06/54,977.46 = 21,933.70/x
  3. Step 3: Cross multiply
    39,839.06x = 54,977.46 × 21,933.70
  4. Step 4: Simplify right side
    39,839.06x = 1,205,859,114.40
  5. Step 5: Solve for x
    x = 1,205,859,114.40/39,839.06
  6. Step 6: Final answer
    x = 30,268.26

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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.