Home / 28,687.87-43,032.21-7,628.27

Finding the Fourth Proportional to 28,687.87, 43,032.21 and 7,628.27

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Solution

The fourth proportional to 28,687.87, 43,032.21 and 7,628.27 is: 11,442.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,687.87 : 43,032.21 = 7,628.27 : x
  2. Step 2: Convert to fraction form
    28,687.87/43,032.21 = 7,628.27/x
  3. Step 3: Cross multiply
    28,687.87x = 43,032.21 × 7,628.27
  4. Step 4: Simplify right side
    28,687.87x = 328,261,278.44
  5. Step 5: Solve for x
    x = 328,261,278.44/28,687.87
  6. Step 6: Final answer
    x = 11,442.51

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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.