Home / 30,249.45-41,744.16-16,820.87

Finding the Fourth Proportional to 30,249.45, 41,744.16 and 16,820.87

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Solution

The fourth proportional to 30,249.45, 41,744.16 and 16,820.87 is: 23,212.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,249.45 : 41,744.16 = 16,820.87 : x
  2. Step 2: Convert to fraction form
    30,249.45/41,744.16 = 16,820.87/x
  3. Step 3: Cross multiply
    30,249.45x = 41,744.16 × 16,820.87
  4. Step 4: Simplify right side
    30,249.45x = 702,172,879.90
  5. Step 5: Solve for x
    x = 702,172,879.90/30,249.45
  6. Step 6: Final answer
    x = 23,212.75

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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.