Home / 28,690.20-43,035.33-8,968.86

Finding the Fourth Proportional to 28,690.20, 43,035.33 and 8,968.86

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Solution

The fourth proportional to 28,690.20, 43,035.33 and 8,968.86 is: 13,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690.20 : 43,035.33 = 8,968.86 : x
  2. Step 2: Convert to fraction form
    28,690.20/43,035.33 = 8,968.86/x
  3. Step 3: Cross multiply
    28,690.20x = 43,035.33 × 8,968.86
  4. Step 4: Simplify right side
    28,690.20x = 385,977,849.82
  5. Step 5: Solve for x
    x = 385,977,849.82/28,690.20
  6. Step 6: Final answer
    x = 13,453.30

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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.