Home / 21,604.08-29,796-18,141.30

Finding the Fourth Proportional to 21,604.08, 29,796 and 18,141.30

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Solution

The fourth proportional to 21,604.08, 29,796 and 18,141.30 is: 25,020.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,604.08 : 29,796 = 18,141.30 : x
  2. Step 2: Convert to fraction form
    21,604.08/29,796 = 18,141.30/x
  3. Step 3: Cross multiply
    21,604.08x = 29,796 × 18,141.30
  4. Step 4: Simplify right side
    21,604.08x = 540,538,174.80
  5. Step 5: Solve for x
    x = 540,538,174.80/21,604.08
  6. Step 6: Final answer
    x = 25,020.19

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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.