Home / 28,131.20-42,196.80-27,693.80

Finding the Fourth Proportional to 28,131.20, 42,196.80 and 27,693.80

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Solution

The fourth proportional to 28,131.20, 42,196.80 and 27,693.80 is: 41,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,131.20 : 42,196.80 = 27,693.80 : x
  2. Step 2: Convert to fraction form
    28,131.20/42,196.80 = 27,693.80/x
  3. Step 3: Cross multiply
    28,131.20x = 42,196.80 × 27,693.80
  4. Step 4: Simplify right side
    28,131.20x = 1,168,589,739.84
  5. Step 5: Solve for x
    x = 1,168,589,739.84/28,131.20
  6. Step 6: Final answer
    x = 41,540.70

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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.