Home / 22,408.07-30,856.43-21,910.80

Finding the Fourth Proportional to 22,408.07, 30,856.43 and 21,910.80

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Solution

The fourth proportional to 22,408.07, 30,856.43 and 21,910.80 is: 30,171.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,408.07 : 30,856.43 = 21,910.80 : x
  2. Step 2: Convert to fraction form
    22,408.07/30,856.43 = 21,910.80/x
  3. Step 3: Cross multiply
    22,408.07x = 30,856.43 × 21,910.80
  4. Step 4: Simplify right side
    22,408.07x = 676,089,121.22
  5. Step 5: Solve for x
    x = 676,089,121.22/22,408.07
  6. Step 6: Final answer
    x = 30,171.69

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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.