Home / 19,783.33-27,288.70-12,231.97

Finding the Fourth Proportional to 19,783.33, 27,288.70 and 12,231.97

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Solution

The fourth proportional to 19,783.33, 27,288.70 and 12,231.97 is: 16,872.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.33 : 27,288.70 = 12,231.97 : x
  2. Step 2: Convert to fraction form
    19,783.33/27,288.70 = 12,231.97/x
  3. Step 3: Cross multiply
    19,783.33x = 27,288.70 × 12,231.97
  4. Step 4: Simplify right side
    19,783.33x = 333,794,559.74
  5. Step 5: Solve for x
    x = 333,794,559.74/19,783.33
  6. Step 6: Final answer
    x = 16,872.52

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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.