Home / 39,860.41-59,786.67-13,564.78

Finding the Fourth Proportional to 39,860.41, 59,786.67 and 13,564.78

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Solution

The fourth proportional to 39,860.41, 59,786.67 and 13,564.78 is: 20,345.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,860.41 : 59,786.67 = 13,564.78 : x
  2. Step 2: Convert to fraction form
    39,860.41/59,786.67 = 13,564.78/x
  3. Step 3: Cross multiply
    39,860.41x = 59,786.67 × 13,564.78
  4. Step 4: Simplify right side
    39,860.41x = 810,993,025.48
  5. Step 5: Solve for x
    x = 810,993,025.48/39,860.41
  6. Step 6: Final answer
    x = 20,345.83

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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.