Home / 20,836.04-31,250.70-7,694.60

Finding the Fourth Proportional to 20,836.04, 31,250.70 and 7,694.60

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Solution

The fourth proportional to 20,836.04, 31,250.70 and 7,694.60 is: 11,540.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.04 : 31,250.70 = 7,694.60 : x
  2. Step 2: Convert to fraction form
    20,836.04/31,250.70 = 7,694.60/x
  3. Step 3: Cross multiply
    20,836.04x = 31,250.70 × 7,694.60
  4. Step 4: Simplify right side
    20,836.04x = 240,461,636.22
  5. Step 5: Solve for x
    x = 240,461,636.22/20,836.04
  6. Step 6: Final answer
    x = 11,540.66

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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.