Home / 20,735.88-28,614.66-11,660.98

Finding the Fourth Proportional to 20,735.88, 28,614.66 and 11,660.98

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Solution

The fourth proportional to 20,735.88, 28,614.66 and 11,660.98 is: 16,091.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.88 : 28,614.66 = 11,660.98 : x
  2. Step 2: Convert to fraction form
    20,735.88/28,614.66 = 11,660.98/x
  3. Step 3: Cross multiply
    20,735.88x = 28,614.66 × 11,660.98
  4. Step 4: Simplify right side
    20,735.88x = 333,674,977.97
  5. Step 5: Solve for x
    x = 333,674,977.97/20,735.88
  6. Step 6: Final answer
    x = 16,091.67

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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.