Home / 19,840.94-29,745.81-13,581.98

Finding the Fourth Proportional to 19,840.94, 29,745.81 and 13,581.98

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Solution

The fourth proportional to 19,840.94, 29,745.81 and 13,581.98 is: 20,362.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.94 : 29,745.81 = 13,581.98 : x
  2. Step 2: Convert to fraction form
    19,840.94/29,745.81 = 13,581.98/x
  3. Step 3: Cross multiply
    19,840.94x = 29,745.81 × 13,581.98
  4. Step 4: Simplify right side
    19,840.94x = 404,007,070.87
  5. Step 5: Solve for x
    x = 404,007,070.87/19,840.94
  6. Step 6: Final answer
    x = 20,362.29

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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.