Home / 28,745.40-43,122.18-9,025.50

Finding the Fourth Proportional to 28,745.40, 43,122.18 and 9,025.50

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Solution

The fourth proportional to 28,745.40, 43,122.18 and 9,025.50 is: 13,539.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,745.40 : 43,122.18 = 9,025.50 : x
  2. Step 2: Convert to fraction form
    28,745.40/43,122.18 = 9,025.50/x
  3. Step 3: Cross multiply
    28,745.40x = 43,122.18 × 9,025.50
  4. Step 4: Simplify right side
    28,745.40x = 389,199,235.59
  5. Step 5: Solve for x
    x = 389,199,235.59/28,745.40
  6. Step 6: Final answer
    x = 13,539.53

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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.