Home / 21,195.07-29,249.55-11,635.85

Finding the Fourth Proportional to 21,195.07, 29,249.55 and 11,635.85

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Solution

The fourth proportional to 21,195.07, 29,249.55 and 11,635.85 is: 16,057.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.07 : 29,249.55 = 11,635.85 : x
  2. Step 2: Convert to fraction form
    21,195.07/29,249.55 = 11,635.85/x
  3. Step 3: Cross multiply
    21,195.07x = 29,249.55 × 11,635.85
  4. Step 4: Simplify right side
    21,195.07x = 340,343,449.49
  5. Step 5: Solve for x
    x = 340,343,449.49/21,195.07
  6. Step 6: Final answer
    x = 16,057.67

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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.