Home / 21,664.39-29,896.86-12,233.56

Finding the Fourth Proportional to 21,664.39, 29,896.86 and 12,233.56

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Solution

The fourth proportional to 21,664.39, 29,896.86 and 12,233.56 is: 16,882.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664.39 : 29,896.86 = 12,233.56 : x
  2. Step 2: Convert to fraction form
    21,664.39/29,896.86 = 12,233.56/x
  3. Step 3: Cross multiply
    21,664.39x = 29,896.86 × 12,233.56
  4. Step 4: Simplify right side
    21,664.39x = 365,745,030.62
  5. Step 5: Solve for x
    x = 365,745,030.62/21,664.39
  6. Step 6: Final answer
    x = 16,882.31

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1.5x scale

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.