Home / 38,660.78-57,982.13-21,801.07

Finding the Fourth Proportional to 38,660.78, 57,982.13 and 21,801.07

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Solution

The fourth proportional to 38,660.78, 57,982.13 and 21,801.07 is: 32,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.78 : 57,982.13 = 21,801.07 : x
  2. Step 2: Convert to fraction form
    38,660.78/57,982.13 = 21,801.07/x
  3. Step 3: Cross multiply
    38,660.78x = 57,982.13 × 21,801.07
  4. Step 4: Simplify right side
    38,660.78x = 1,264,072,520.11
  5. Step 5: Solve for x
    x = 1,264,072,520.11/38,660.78
  6. Step 6: Final answer
    x = 32,696.51

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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.