Home / 25,290.12-37,984.36-20,613.56

Finding the Fourth Proportional to 25,290.12, 37,984.36 and 20,613.56

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Solution

The fourth proportional to 25,290.12, 37,984.36 and 20,613.56 is: 30,960.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,290.12 : 37,984.36 = 20,613.56 : x
  2. Step 2: Convert to fraction form
    25,290.12/37,984.36 = 20,613.56/x
  3. Step 3: Cross multiply
    25,290.12x = 37,984.36 × 20,613.56
  4. Step 4: Simplify right side
    25,290.12x = 782,992,883.92
  5. Step 5: Solve for x
    x = 782,992,883.92/25,290.12
  6. Step 6: Final answer
    x = 30,960.43

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.