Home / 19,939.48-29,919.44-13,704.50

Finding the Fourth Proportional to 19,939.48, 29,919.44 and 13,704.50

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Solution

The fourth proportional to 19,939.48, 29,919.44 and 13,704.50 is: 20,563.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.48 : 29,919.44 = 13,704.50 : x
  2. Step 2: Convert to fraction form
    19,939.48/29,919.44 = 13,704.50/x
  3. Step 3: Cross multiply
    19,939.48x = 29,919.44 × 13,704.50
  4. Step 4: Simplify right side
    19,939.48x = 410,031,074.54
  5. Step 5: Solve for x
    x = 410,031,074.54/19,939.48
  6. Step 6: Final answer
    x = 20,563.78

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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.