Home / 20,633.08-30,958.50-11,143.49

Finding the Fourth Proportional to 20,633.08, 30,958.50 and 11,143.49

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Solution

The fourth proportional to 20,633.08, 30,958.50 and 11,143.49 is: 16,720.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.08 : 30,958.50 = 11,143.49 : x
  2. Step 2: Convert to fraction form
    20,633.08/30,958.50 = 11,143.49/x
  3. Step 3: Cross multiply
    20,633.08x = 30,958.50 × 11,143.49
  4. Step 4: Simplify right side
    20,633.08x = 344,985,660.48
  5. Step 5: Solve for x
    x = 344,985,660.48/20,633.08
  6. Step 6: Final answer
    x = 16,720.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.