Home / 30,266.20-45,350.70-28,516.60

Finding the Fourth Proportional to 30,266.20, 45,350.70 and 28,516.60

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Solution

The fourth proportional to 30,266.20, 45,350.70 and 28,516.60 is: 42,729.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,266.20 : 45,350.70 = 28,516.60 : x
  2. Step 2: Convert to fraction form
    30,266.20/45,350.70 = 28,516.60/x
  3. Step 3: Cross multiply
    30,266.20x = 45,350.70 × 28,516.60
  4. Step 4: Simplify right side
    30,266.20x = 1,293,247,771.62
  5. Step 5: Solve for x
    x = 1,293,247,771.62/30,266.20
  6. Step 6: Final answer
    x = 42,729.11

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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.