Home / 38,511.12-57,768.30-18,807.06

Finding the Fourth Proportional to 38,511.12, 57,768.30 and 18,807.06

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Solution

The fourth proportional to 38,511.12, 57,768.30 and 18,807.06 is: 28,211.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511.12 : 57,768.30 = 18,807.06 : x
  2. Step 2: Convert to fraction form
    38,511.12/57,768.30 = 18,807.06/x
  3. Step 3: Cross multiply
    38,511.12x = 57,768.30 × 18,807.06
  4. Step 4: Simplify right side
    38,511.12x = 1,086,451,884.20
  5. Step 5: Solve for x
    x = 1,086,451,884.20/38,511.12
  6. Step 6: Final answer
    x = 28,211.38

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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.