Home / 20,672.57-30,999.26-6,629.45

Finding the Fourth Proportional to 20,672.57, 30,999.26 and 6,629.45

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Solution

The fourth proportional to 20,672.57, 30,999.26 and 6,629.45 is: 9,941.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672.57 : 30,999.26 = 6,629.45 : x
  2. Step 2: Convert to fraction form
    20,672.57/30,999.26 = 6,629.45/x
  3. Step 3: Cross multiply
    20,672.57x = 30,999.26 × 6,629.45
  4. Step 4: Simplify right side
    20,672.57x = 205,507,868.49
  5. Step 5: Solve for x
    x = 205,507,868.49/20,672.57
  6. Step 6: Final answer
    x = 9,941.09

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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.