Home / 28,729,046.92-39,647,040.48-15,677,021.92

Finding the Fourth Proportional to 28,729,046.92, 39,647,040.48 and 15,677,021.92

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Solution

The fourth proportional to 28,729,046.92, 39,647,040.48 and 15,677,021.92 is: 21,634,811.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,729,046.92 : 39,647,040.48 = 15,677,021.92 : x
  2. Step 2: Convert to fraction form
    28,729,046.92/39,647,040.48 = 15,677,021.92/x
  3. Step 3: Cross multiply
    28,729,046.92x = 39,647,040.48 × 15,677,021.92
  4. Step 4: Simplify right side
    28,729,046.92x = 621,547,522,668,087.25
  5. Step 5: Solve for x
    x = 621,547,522,668,087.25/28,729,046.92
  6. Step 6: Final answer
    x = 21,634,811.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.