Home / 20,033.89-27,621.65-12,851.15

Finding the Fourth Proportional to 20,033.89, 27,621.65 and 12,851.15

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Solution

The fourth proportional to 20,033.89, 27,621.65 and 12,851.15 is: 17,718.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,033.89 : 27,621.65 = 12,851.15 : x
  2. Step 2: Convert to fraction form
    20,033.89/27,621.65 = 12,851.15/x
  3. Step 3: Cross multiply
    20,033.89x = 27,621.65 × 12,851.15
  4. Step 4: Simplify right side
    20,033.89x = 354,969,861.42
  5. Step 5: Solve for x
    x = 354,969,861.42/20,033.89
  6. Step 6: Final answer
    x = 17,718.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.