Home / 38,603.21-57,904.81-13,629.56

Finding the Fourth Proportional to 38,603.21, 57,904.81 and 13,629.56

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Solution

The fourth proportional to 38,603.21, 57,904.81 and 13,629.56 is: 20,444.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,603.21 : 57,904.81 = 13,629.56 : x
  2. Step 2: Convert to fraction form
    38,603.21/57,904.81 = 13,629.56/x
  3. Step 3: Cross multiply
    38,603.21x = 57,904.81 × 13,629.56
  4. Step 4: Simplify right side
    38,603.21x = 789,216,758.59
  5. Step 5: Solve for x
    x = 789,216,758.59/38,603.21
  6. Step 6: Final answer
    x = 20,444.33

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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.