Home / 21,251.98-29,327.12-11,561.13

Finding the Fourth Proportional to 21,251.98, 29,327.12 and 11,561.13

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Solution

The fourth proportional to 21,251.98, 29,327.12 and 11,561.13 is: 15,954.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,251.98 : 29,327.12 = 11,561.13 : x
  2. Step 2: Convert to fraction form
    21,251.98/29,327.12 = 11,561.13/x
  3. Step 3: Cross multiply
    21,251.98x = 29,327.12 × 11,561.13
  4. Step 4: Simplify right side
    21,251.98x = 339,054,664.91
  5. Step 5: Solve for x
    x = 339,054,664.91/21,251.98
  6. Step 6: Final answer
    x = 15,954.03

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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.