Home / 21,789.62-30,059.67-12,832.83

Finding the Fourth Proportional to 21,789.62, 30,059.67 and 12,832.83

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Solution

The fourth proportional to 21,789.62, 30,059.67 and 12,832.83 is: 17,703.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789.62 : 30,059.67 = 12,832.83 : x
  2. Step 2: Convert to fraction form
    21,789.62/30,059.67 = 12,832.83/x
  3. Step 3: Cross multiply
    21,789.62x = 30,059.67 × 12,832.83
  4. Step 4: Simplify right side
    21,789.62x = 385,750,634.97
  5. Step 5: Solve for x
    x = 385,750,634.97/21,789.62
  6. Step 6: Final answer
    x = 17,703.42

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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.