Home / 39,194.56-54,087.59-21,289.17

Finding the Fourth Proportional to 39,194.56, 54,087.59 and 21,289.17

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Solution

The fourth proportional to 39,194.56, 54,087.59 and 21,289.17 is: 29,378.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,194.56 : 54,087.59 = 21,289.17 : x
  2. Step 2: Convert to fraction form
    39,194.56/54,087.59 = 21,289.17/x
  3. Step 3: Cross multiply
    39,194.56x = 54,087.59 × 21,289.17
  4. Step 4: Simplify right side
    39,194.56x = 1,151,479,951.62
  5. Step 5: Solve for x
    x = 1,151,479,951.62/39,194.56
  6. Step 6: Final answer
    x = 29,378.57

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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.