Home / 19,132.89-28,662.21-15,191.43

Finding the Fourth Proportional to 19,132.89, 28,662.21 and 15,191.43

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Solution

The fourth proportional to 19,132.89, 28,662.21 and 15,191.43 is: 22,757.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,132.89 : 28,662.21 = 15,191.43 : x
  2. Step 2: Convert to fraction form
    19,132.89/28,662.21 = 15,191.43/x
  3. Step 3: Cross multiply
    19,132.89x = 28,662.21 × 15,191.43
  4. Step 4: Simplify right side
    19,132.89x = 435,419,956.86
  5. Step 5: Solve for x
    x = 435,419,956.86/19,132.89
  6. Step 6: Final answer
    x = 22,757.67

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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.