Home / 39,833.19-54,969.50-21,928.50

Finding the Fourth Proportional to 39,833.19, 54,969.50 and 21,928.50

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Solution

The fourth proportional to 39,833.19, 54,969.50 and 21,928.50 is: 30,261.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,833.19 : 54,969.50 = 21,928.50 : x
  2. Step 2: Convert to fraction form
    39,833.19/54,969.50 = 21,928.50/x
  3. Step 3: Cross multiply
    39,833.19x = 54,969.50 × 21,928.50
  4. Step 4: Simplify right side
    39,833.19x = 1,205,398,735.57
  5. Step 5: Solve for x
    x = 1,205,398,735.57/39,833.19
  6. Step 6: Final answer
    x = 30,261.17

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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.