Home / 28,903.20-43,379.49-20,603.52

Finding the Fourth Proportional to 28,903.20, 43,379.49 and 20,603.52

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Solution

The fourth proportional to 28,903.20, 43,379.49 and 20,603.52 is: 30,922.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.20 : 43,379.49 = 20,603.52 : x
  2. Step 2: Convert to fraction form
    28,903.20/43,379.49 = 20,603.52/x
  3. Step 3: Cross multiply
    28,903.20x = 43,379.49 × 20,603.52
  4. Step 4: Simplify right side
    28,903.20x = 893,770,189.80
  5. Step 5: Solve for x
    x = 893,770,189.80/28,903.20
  6. Step 6: Final answer
    x = 30,922.88

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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.