Home / 21,743.96-30,012.57-12,794.34

Finding the Fourth Proportional to 21,743.96, 30,012.57 and 12,794.34

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Solution

The fourth proportional to 21,743.96, 30,012.57 and 12,794.34 is: 17,659.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,743.96 : 30,012.57 = 12,794.34 : x
  2. Step 2: Convert to fraction form
    21,743.96/30,012.57 = 12,794.34/x
  3. Step 3: Cross multiply
    21,743.96x = 30,012.57 × 12,794.34
  4. Step 4: Simplify right side
    21,743.96x = 383,991,137.40
  5. Step 5: Solve for x
    x = 383,991,137.40/21,743.96
  6. Step 6: Final answer
    x = 17,659.67

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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.