Home / 30,584.20-45,817.80-20,674.84

Finding the Fourth Proportional to 30,584.20, 45,817.80 and 20,674.84

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Solution

The fourth proportional to 30,584.20, 45,817.80 and 20,674.84 is: 30,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,584.20 : 45,817.80 = 20,674.84 : x
  2. Step 2: Convert to fraction form
    30,584.20/45,817.80 = 20,674.84/x
  3. Step 3: Cross multiply
    30,584.20x = 45,817.80 × 20,674.84
  4. Step 4: Simplify right side
    30,584.20x = 947,275,684.15
  5. Step 5: Solve for x
    x = 947,275,684.15/30,584.20
  6. Step 6: Final answer
    x = 30,972.71

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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.