Home / 30,651.21-45,914.85-28,099.71

Finding the Fourth Proportional to 30,651.21, 45,914.85 and 28,099.71

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Solution

The fourth proportional to 30,651.21, 45,914.85 and 28,099.71 is: 42,092.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651.21 : 45,914.85 = 28,099.71 : x
  2. Step 2: Convert to fraction form
    30,651.21/45,914.85 = 28,099.71/x
  3. Step 3: Cross multiply
    30,651.21x = 45,914.85 × 28,099.71
  4. Step 4: Simplify right side
    30,651.21x = 1,290,193,969.69
  5. Step 5: Solve for x
    x = 1,290,193,969.69/30,651.21
  6. Step 6: Final answer
    x = 42,092.76

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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.