Home / 21,331.04-31,992.24-5,745.02

Finding the Fourth Proportional to 21,331.04, 31,992.24 and 5,745.02

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Solution

The fourth proportional to 21,331.04, 31,992.24 and 5,745.02 is: 8,616.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.04 : 31,992.24 = 5,745.02 : x
  2. Step 2: Convert to fraction form
    21,331.04/31,992.24 = 5,745.02/x
  3. Step 3: Cross multiply
    21,331.04x = 31,992.24 × 5,745.02
  4. Step 4: Simplify right side
    21,331.04x = 183,796,058.64
  5. Step 5: Solve for x
    x = 183,796,058.64/21,331.04
  6. Step 6: Final answer
    x = 8,616.37

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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.