Home / 20,555.10-30,834.02-5,764.60

Finding the Fourth Proportional to 20,555.10, 30,834.02 and 5,764.60

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Solution

The fourth proportional to 20,555.10, 30,834.02 and 5,764.60 is: 8,647.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.10 : 30,834.02 = 5,764.60 : x
  2. Step 2: Convert to fraction form
    20,555.10/30,834.02 = 5,764.60/x
  3. Step 3: Cross multiply
    20,555.10x = 30,834.02 × 5,764.60
  4. Step 4: Simplify right side
    20,555.10x = 177,745,791.69
  5. Step 5: Solve for x
    x = 177,745,791.69/20,555.10
  6. Step 6: Final answer
    x = 8,647.28

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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.