Home / 19,115.59-28,621.99-15,591.06

Finding the Fourth Proportional to 19,115.59, 28,621.99 and 15,591.06

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Solution

The fourth proportional to 19,115.59, 28,621.99 and 15,591.06 is: 23,344.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.59 : 28,621.99 = 15,591.06 : x
  2. Step 2: Convert to fraction form
    19,115.59/28,621.99 = 15,591.06/x
  3. Step 3: Cross multiply
    19,115.59x = 28,621.99 × 15,591.06
  4. Step 4: Simplify right side
    19,115.59x = 446,247,163.41
  5. Step 5: Solve for x
    x = 446,247,163.41/19,115.59
  6. Step 6: Final answer
    x = 23,344.67

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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.