Home / 20,190.74-30,285.83-7,043.04

Finding the Fourth Proportional to 20,190.74, 30,285.83 and 7,043.04

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Solution

The fourth proportional to 20,190.74, 30,285.83 and 7,043.04 is: 10,564.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.74 : 30,285.83 = 7,043.04 : x
  2. Step 2: Convert to fraction form
    20,190.74/30,285.83 = 7,043.04/x
  3. Step 3: Cross multiply
    20,190.74x = 30,285.83 × 7,043.04
  4. Step 4: Simplify right side
    20,190.74x = 213,304,329.73
  5. Step 5: Solve for x
    x = 213,304,329.73/20,190.74
  6. Step 6: Final answer
    x = 10,564.47

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1.5x scale

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.