Home / 17,720.72-24,453.96-11,439.44

Finding the Fourth Proportional to 17,720.72, 24,453.96 and 11,439.44

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Solution

The fourth proportional to 17,720.72, 24,453.96 and 11,439.44 is: 15,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.72 : 24,453.96 = 11,439.44 : x
  2. Step 2: Convert to fraction form
    17,720.72/24,453.96 = 11,439.44/x
  3. Step 3: Cross multiply
    17,720.72x = 24,453.96 × 11,439.44
  4. Step 4: Simplify right side
    17,720.72x = 279,739,608.18
  5. Step 5: Solve for x
    x = 279,739,608.18/17,720.72
  6. Step 6: Final answer
    x = 15,786.02

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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.