Home / 21,728.79-32,593.19-11,338.11

Finding the Fourth Proportional to 21,728.79, 32,593.19 and 11,338.11

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Solution

The fourth proportional to 21,728.79, 32,593.19 and 11,338.11 is: 17,007.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,728.79 : 32,593.19 = 11,338.11 : x
  2. Step 2: Convert to fraction form
    21,728.79/32,593.19 = 11,338.11/x
  3. Step 3: Cross multiply
    21,728.79x = 32,593.19 × 11,338.11
  4. Step 4: Simplify right side
    21,728.79x = 369,545,116.78
  5. Step 5: Solve for x
    x = 369,545,116.78/21,728.79
  6. Step 6: Final answer
    x = 17,007.17

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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.