Home / 20,150.57-30,195.06-8,457.41

Finding the Fourth Proportional to 20,150.57, 30,195.06 and 8,457.41

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Solution

The fourth proportional to 20,150.57, 30,195.06 and 8,457.41 is: 12,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.57 : 30,195.06 = 8,457.41 : x
  2. Step 2: Convert to fraction form
    20,150.57/30,195.06 = 8,457.41/x
  3. Step 3: Cross multiply
    20,150.57x = 30,195.06 × 8,457.41
  4. Step 4: Simplify right side
    20,150.57x = 255,372,002.39
  5. Step 5: Solve for x
    x = 255,372,002.39/20,150.57
  6. Step 6: Final answer
    x = 12,673.19

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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.