Home / 28,850.45-43,272.09-7,792.20

Finding the Fourth Proportional to 28,850.45, 43,272.09 and 7,792.20

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Solution

The fourth proportional to 28,850.45, 43,272.09 and 7,792.20 is: 11,687.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,850.45 : 43,272.09 = 7,792.20 : x
  2. Step 2: Convert to fraction form
    28,850.45/43,272.09 = 7,792.20/x
  3. Step 3: Cross multiply
    28,850.45x = 43,272.09 × 7,792.20
  4. Step 4: Simplify right side
    28,850.45x = 337,184,779.70
  5. Step 5: Solve for x
    x = 337,184,779.70/28,850.45
  6. Step 6: Final answer
    x = 11,687.33

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1.5x scale

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.