Home / 19,351.08-29,021.72-7,500.78

Finding the Fourth Proportional to 19,351.08, 29,021.72 and 7,500.78

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Solution

The fourth proportional to 19,351.08, 29,021.72 and 7,500.78 is: 11,249.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,351.08 : 29,021.72 = 7,500.78 : x
  2. Step 2: Convert to fraction form
    19,351.08/29,021.72 = 7,500.78/x
  3. Step 3: Cross multiply
    19,351.08x = 29,021.72 × 7,500.78
  4. Step 4: Simplify right side
    19,351.08x = 217,685,499.44
  5. Step 5: Solve for x
    x = 217,685,499.44/19,351.08
  6. Step 6: Final answer
    x = 11,249.27

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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.