Home / 20,452.94-30,688.08-8,771.66

Finding the Fourth Proportional to 20,452.94, 30,688.08 and 8,771.66

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Solution

The fourth proportional to 20,452.94, 30,688.08 and 8,771.66 is: 13,161.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.94 : 30,688.08 = 8,771.66 : x
  2. Step 2: Convert to fraction form
    20,452.94/30,688.08 = 8,771.66/x
  3. Step 3: Cross multiply
    20,452.94x = 30,688.08 × 8,771.66
  4. Step 4: Simplify right side
    20,452.94x = 269,185,403.81
  5. Step 5: Solve for x
    x = 269,185,403.81/20,452.94
  6. Step 6: Final answer
    x = 13,161.21

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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.