Home / 21,974.31-30,324.41-11,902.52

Finding the Fourth Proportional to 21,974.31, 30,324.41 and 11,902.52

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Solution

The fourth proportional to 21,974.31, 30,324.41 and 11,902.52 is: 16,425.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.31 : 30,324.41 = 11,902.52 : x
  2. Step 2: Convert to fraction form
    21,974.31/30,324.41 = 11,902.52/x
  3. Step 3: Cross multiply
    21,974.31x = 30,324.41 × 11,902.52
  4. Step 4: Simplify right side
    21,974.31x = 360,936,896.51
  5. Step 5: Solve for x
    x = 360,936,896.51/21,974.31
  6. Step 6: Final answer
    x = 16,425.40

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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.