Home / 20,408.48-30,619.33-10,012.94

Finding the Fourth Proportional to 20,408.48, 30,619.33 and 10,012.94

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Solution

The fourth proportional to 20,408.48, 30,619.33 and 10,012.94 is: 15,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408.48 : 30,619.33 = 10,012.94 : x
  2. Step 2: Convert to fraction form
    20,408.48/30,619.33 = 10,012.94/x
  3. Step 3: Cross multiply
    20,408.48x = 30,619.33 × 10,012.94
  4. Step 4: Simplify right side
    20,408.48x = 306,589,514.13
  5. Step 5: Solve for x
    x = 306,589,514.13/20,408.48
  6. Step 6: Final answer
    x = 15,022.65

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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.