Home / 38,449.05-57,653.01-19,721.43

Finding the Fourth Proportional to 38,449.05, 57,653.01 and 19,721.43

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Solution

The fourth proportional to 38,449.05, 57,653.01 and 19,721.43 is: 29,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,449.05 : 57,653.01 = 19,721.43 : x
  2. Step 2: Convert to fraction form
    38,449.05/57,653.01 = 19,721.43/x
  3. Step 3: Cross multiply
    38,449.05x = 57,653.01 × 19,721.43
  4. Step 4: Simplify right side
    38,449.05x = 1,136,999,801.00
  5. Step 5: Solve for x
    x = 1,136,999,801.00/38,449.05
  6. Step 6: Final answer
    x = 29,571.60

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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.