Home / 21,331.50-29,451.96-13,796.04

Finding the Fourth Proportional to 21,331.50, 29,451.96 and 13,796.04

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Solution

The fourth proportional to 21,331.50, 29,451.96 and 13,796.04 is: 19,047.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.50 : 29,451.96 = 13,796.04 : x
  2. Step 2: Convert to fraction form
    21,331.50/29,451.96 = 13,796.04/x
  3. Step 3: Cross multiply
    21,331.50x = 29,451.96 × 13,796.04
  4. Step 4: Simplify right side
    21,331.50x = 406,320,418.24
  5. Step 5: Solve for x
    x = 406,320,418.24/21,331.50
  6. Step 6: Final answer
    x = 19,047.91

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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.