Home / 28,094.21-42,135.55-8,367.47

Finding the Fourth Proportional to 28,094.21, 42,135.55 and 8,367.47

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Solution

The fourth proportional to 28,094.21, 42,135.55 and 8,367.47 is: 12,549.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,094.21 : 42,135.55 = 8,367.47 : x
  2. Step 2: Convert to fraction form
    28,094.21/42,135.55 = 8,367.47/x
  3. Step 3: Cross multiply
    28,094.21x = 42,135.55 × 8,367.47
  4. Step 4: Simplify right side
    28,094.21x = 352,568,034.98
  5. Step 5: Solve for x
    x = 352,568,034.98/28,094.21
  6. Step 6: Final answer
    x = 12,549.49

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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.