Home / 28,468.25-42,698.61-8,745.15

Finding the Fourth Proportional to 28,468.25, 42,698.61 and 8,745.15

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Solution

The fourth proportional to 28,468.25, 42,698.61 and 8,745.15 is: 13,116.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468.25 : 42,698.61 = 8,745.15 : x
  2. Step 2: Convert to fraction form
    28,468.25/42,698.61 = 8,745.15/x
  3. Step 3: Cross multiply
    28,468.25x = 42,698.61 × 8,745.15
  4. Step 4: Simplify right side
    28,468.25x = 373,405,749.24
  5. Step 5: Solve for x
    x = 373,405,749.24/28,468.25
  6. Step 6: Final answer
    x = 13,116.57

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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.