Home / 19,425.36-29,139.94-7,735.86

Finding the Fourth Proportional to 19,425.36, 29,139.94 and 7,735.86

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Solution

The fourth proportional to 19,425.36, 29,139.94 and 7,735.86 is: 11,604.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,425.36 : 29,139.94 = 7,735.86 : x
  2. Step 2: Convert to fraction form
    19,425.36/29,139.94 = 7,735.86/x
  3. Step 3: Cross multiply
    19,425.36x = 29,139.94 × 7,735.86
  4. Step 4: Simplify right side
    19,425.36x = 225,422,496.25
  5. Step 5: Solve for x
    x = 225,422,496.25/19,425.36
  6. Step 6: Final answer
    x = 11,604.55

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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.