Home / 28,747.44-43,135.74-20,451.42

Finding the Fourth Proportional to 28,747.44, 43,135.74 and 20,451.42

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Solution

The fourth proportional to 28,747.44, 43,135.74 and 20,451.42 is: 30,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.44 : 43,135.74 = 20,451.42 : x
  2. Step 2: Convert to fraction form
    28,747.44/43,135.74 = 20,451.42/x
  3. Step 3: Cross multiply
    28,747.44x = 43,135.74 × 20,451.42
  4. Step 4: Simplify right side
    28,747.44x = 882,187,135.75
  5. Step 5: Solve for x
    x = 882,187,135.75/28,747.44
  6. Step 6: Final answer
    x = 30,687.50

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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.