Home / 39,976.92-59,959.91-11,901.31

Finding the Fourth Proportional to 39,976.92, 59,959.91 and 11,901.31

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Solution

The fourth proportional to 39,976.92, 59,959.91 and 11,901.31 is: 17,850.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,976.92 : 59,959.91 = 11,901.31 : x
  2. Step 2: Convert to fraction form
    39,976.92/59,959.91 = 11,901.31/x
  3. Step 3: Cross multiply
    39,976.92x = 59,959.91 × 11,901.31
  4. Step 4: Simplify right side
    39,976.92x = 713,601,476.48
  5. Step 5: Solve for x
    x = 713,601,476.48/39,976.92
  6. Step 6: Final answer
    x = 17,850.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.