Home / 20,088.96-30,099.42-12,167.54

Finding the Fourth Proportional to 20,088.96, 30,099.42 and 12,167.54

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Solution

The fourth proportional to 20,088.96, 30,099.42 and 12,167.54 is: 18,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.96 : 30,099.42 = 12,167.54 : x
  2. Step 2: Convert to fraction form
    20,088.96/30,099.42 = 12,167.54/x
  3. Step 3: Cross multiply
    20,088.96x = 30,099.42 × 12,167.54
  4. Step 4: Simplify right side
    20,088.96x = 366,235,978.08
  5. Step 5: Solve for x
    x = 366,235,978.08/20,088.96
  6. Step 6: Final answer
    x = 18,230.71

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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.