Home / 20,469.04-30,704.20-5,679.08

Finding the Fourth Proportional to 20,469.04, 30,704.20 and 5,679.08

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Solution

The fourth proportional to 20,469.04, 30,704.20 and 5,679.08 is: 8,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,469.04 : 30,704.20 = 5,679.08 : x
  2. Step 2: Convert to fraction form
    20,469.04/30,704.20 = 5,679.08/x
  3. Step 3: Cross multiply
    20,469.04x = 30,704.20 × 5,679.08
  4. Step 4: Simplify right side
    20,469.04x = 174,371,608.14
  5. Step 5: Solve for x
    x = 174,371,608.14/20,469.04
  6. Step 6: Final answer
    x = 8,518.80

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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.