Home / 21,971.20-32,937.36-8,104

Finding the Fourth Proportional to 21,971.20, 32,937.36 and 8,104

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Solution

The fourth proportional to 21,971.20, 32,937.36 and 8,104 is: 12,148.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,971.20 : 32,937.36 = 8,104 : x
  2. Step 2: Convert to fraction form
    21,971.20/32,937.36 = 8,104/x
  3. Step 3: Cross multiply
    21,971.20x = 32,937.36 × 8,104
  4. Step 4: Simplify right side
    21,971.20x = 266,924,365.44
  5. Step 5: Solve for x
    x = 266,924,365.44/21,971.20
  6. Step 6: Final answer
    x = 12,148.83

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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.