Home / 20,099.41-30,149.37-9,570.43

Finding the Fourth Proportional to 20,099.41, 30,149.37 and 9,570.43

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Solution

The fourth proportional to 20,099.41, 30,149.37 and 9,570.43 is: 14,355.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099.41 : 30,149.37 = 9,570.43 : x
  2. Step 2: Convert to fraction form
    20,099.41/30,149.37 = 9,570.43/x
  3. Step 3: Cross multiply
    20,099.41x = 30,149.37 × 9,570.43
  4. Step 4: Simplify right side
    20,099.41x = 288,542,435.13
  5. Step 5: Solve for x
    x = 288,542,435.13/20,099.41
  6. Step 6: Final answer
    x = 14,355.77

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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.