Home / 20,736.52-31,104.24-6,885.52

Finding the Fourth Proportional to 20,736.52, 31,104.24 and 6,885.52

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Solution

The fourth proportional to 20,736.52, 31,104.24 and 6,885.52 is: 10,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.52 : 31,104.24 = 6,885.52 : x
  2. Step 2: Convert to fraction form
    20,736.52/31,104.24 = 6,885.52/x
  3. Step 3: Cross multiply
    20,736.52x = 31,104.24 × 6,885.52
  4. Step 4: Simplify right side
    20,736.52x = 214,168,866.60
  5. Step 5: Solve for x
    x = 214,168,866.60/20,736.52
  6. Step 6: Final answer
    x = 10,328.10

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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.