Home / 28,768.82-43,155.57-7,992.32

Finding the Fourth Proportional to 28,768.82, 43,155.57 and 7,992.32

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Solution

The fourth proportional to 28,768.82, 43,155.57 and 7,992.32 is: 11,989.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.82 : 43,155.57 = 7,992.32 : x
  2. Step 2: Convert to fraction form
    28,768.82/43,155.57 = 7,992.32/x
  3. Step 3: Cross multiply
    28,768.82x = 43,155.57 × 7,992.32
  4. Step 4: Simplify right side
    28,768.82x = 344,913,125.22
  5. Step 5: Solve for x
    x = 344,913,125.22/28,768.82
  6. Step 6: Final answer
    x = 11,989.13

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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.