Home / 30,546.87-45,820.37-8,360.47

Finding the Fourth Proportional to 30,546.87, 45,820.37 and 8,360.47

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Solution

The fourth proportional to 30,546.87, 45,820.37 and 8,360.47 is: 12,540.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,546.87 : 45,820.37 = 8,360.47 : x
  2. Step 2: Convert to fraction form
    30,546.87/45,820.37 = 8,360.47/x
  3. Step 3: Cross multiply
    30,546.87x = 45,820.37 × 8,360.47
  4. Step 4: Simplify right side
    30,546.87x = 383,079,828.77
  5. Step 5: Solve for x
    x = 383,079,828.77/30,546.87
  6. Step 6: Final answer
    x = 12,540.72

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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.