Home / 21,553.03-29,747.26-13,490.42

Finding the Fourth Proportional to 21,553.03, 29,747.26 and 13,490.42

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Solution

The fourth proportional to 21,553.03, 29,747.26 and 13,490.42 is: 18,619.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,553.03 : 29,747.26 = 13,490.42 : x
  2. Step 2: Convert to fraction form
    21,553.03/29,747.26 = 13,490.42/x
  3. Step 3: Cross multiply
    21,553.03x = 29,747.26 × 13,490.42
  4. Step 4: Simplify right side
    21,553.03x = 401,303,031.25
  5. Step 5: Solve for x
    x = 401,303,031.25/21,553.03
  6. Step 6: Final answer
    x = 18,619.34

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