Home / 21,664.58-29,896.89-12,232.58

Finding the Fourth Proportional to 21,664.58, 29,896.89 and 12,232.58

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Solution

The fourth proportional to 21,664.58, 29,896.89 and 12,232.58 is: 16,880.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664.58 : 29,896.89 = 12,232.58 : x
  2. Step 2: Convert to fraction form
    21,664.58/29,896.89 = 12,232.58/x
  3. Step 3: Cross multiply
    21,664.58x = 29,896.89 × 12,232.58
  4. Step 4: Simplify right side
    21,664.58x = 365,716,098.68
  5. Step 5: Solve for x
    x = 365,716,098.68/21,664.58
  6. Step 6: Final answer
    x = 16,880.83

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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.