Home / 25,721.94-38,589.29-18,308.01

Finding the Fourth Proportional to 25,721.94, 38,589.29 and 18,308.01

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Solution

The fourth proportional to 25,721.94, 38,589.29 and 18,308.01 is: 27,466.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,721.94 : 38,589.29 = 18,308.01 : x
  2. Step 2: Convert to fraction form
    25,721.94/38,589.29 = 18,308.01/x
  3. Step 3: Cross multiply
    25,721.94x = 38,589.29 × 18,308.01
  4. Step 4: Simplify right side
    25,721.94x = 706,493,107.21
  5. Step 5: Solve for x
    x = 706,493,107.21/25,721.94
  6. Step 6: Final answer
    x = 27,466.56

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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.