Home / 28,144.44-42,204.18-8,419.20

Finding the Fourth Proportional to 28,144.44, 42,204.18 and 8,419.20

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Solution

The fourth proportional to 28,144.44, 42,204.18 and 8,419.20 is: 12,625.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,144.44 : 42,204.18 = 8,419.20 : x
  2. Step 2: Convert to fraction form
    28,144.44/42,204.18 = 8,419.20/x
  3. Step 3: Cross multiply
    28,144.44x = 42,204.18 × 8,419.20
  4. Step 4: Simplify right side
    28,144.44x = 355,325,432.26
  5. Step 5: Solve for x
    x = 355,325,432.26/28,144.44
  6. Step 6: Final answer
    x = 12,625.07

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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.