Home / 21,976.04-30,326.97-13,027.94

Finding the Fourth Proportional to 21,976.04, 30,326.97 and 13,027.94

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Solution

The fourth proportional to 21,976.04, 30,326.97 and 13,027.94 is: 17,978.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,976.04 : 30,326.97 = 13,027.94 : x
  2. Step 2: Convert to fraction form
    21,976.04/30,326.97 = 13,027.94/x
  3. Step 3: Cross multiply
    21,976.04x = 30,326.97 × 13,027.94
  4. Step 4: Simplify right side
    21,976.04x = 395,097,945.54
  5. Step 5: Solve for x
    x = 395,097,945.54/21,976.04
  6. Step 6: Final answer
    x = 17,978.58

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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.