Home / 39,194.81-54,087.94-21,289.42

Finding the Fourth Proportional to 39,194.81, 54,087.94 and 21,289.42

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Solution

The fourth proportional to 39,194.81, 54,087.94 and 21,289.42 is: 29,378.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,194.81 : 54,087.94 = 21,289.42 : x
  2. Step 2: Convert to fraction form
    39,194.81/54,087.94 = 21,289.42/x
  3. Step 3: Cross multiply
    39,194.81x = 54,087.94 × 21,289.42
  4. Step 4: Simplify right side
    39,194.81x = 1,151,500,871.59
  5. Step 5: Solve for x
    x = 1,151,500,871.59/39,194.81
  6. Step 6: Final answer
    x = 29,378.91

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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.