Home / 27,012.72-40,533.12-20,436.96

Finding the Fourth Proportional to 27,012.72, 40,533.12 and 20,436.96

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Solution

The fourth proportional to 27,012.72, 40,533.12 and 20,436.96 is: 30,666.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,012.72 : 40,533.12 = 20,436.96 : x
  2. Step 2: Convert to fraction form
    27,012.72/40,533.12 = 20,436.96/x
  3. Step 3: Cross multiply
    27,012.72x = 40,533.12 × 20,436.96
  4. Step 4: Simplify right side
    27,012.72x = 828,373,752.12
  5. Step 5: Solve for x
    x = 828,373,752.12/27,012.72
  6. Step 6: Final answer
    x = 30,666.06

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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.