Home / 21,558.65-29,750.07-11,998.27

Finding the Fourth Proportional to 21,558.65, 29,750.07 and 11,998.27

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Solution

The fourth proportional to 21,558.65, 29,750.07 and 11,998.27 is: 16,557.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,558.65 : 29,750.07 = 11,998.27 : x
  2. Step 2: Convert to fraction form
    21,558.65/29,750.07 = 11,998.27/x
  3. Step 3: Cross multiply
    21,558.65x = 29,750.07 × 11,998.27
  4. Step 4: Simplify right side
    21,558.65x = 356,949,286.76
  5. Step 5: Solve for x
    x = 356,949,286.76/21,558.65
  6. Step 6: Final answer
    x = 16,557.12

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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.