Home / 34,286.08-51,435.60-10,919.20

Finding the Fourth Proportional to 34,286.08, 51,435.60 and 10,919.20

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Solution

The fourth proportional to 34,286.08, 51,435.60 and 10,919.20 is: 16,380.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,286.08 : 51,435.60 = 10,919.20 : x
  2. Step 2: Convert to fraction form
    34,286.08/51,435.60 = 10,919.20/x
  3. Step 3: Cross multiply
    34,286.08x = 51,435.60 × 10,919.20
  4. Step 4: Simplify right side
    34,286.08x = 561,635,603.52
  5. Step 5: Solve for x
    x = 561,635,603.52/34,286.08
  6. Step 6: Final answer
    x = 16,380.86

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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.