Home / 28,512.08-39,346.72-15,936.82

Finding the Fourth Proportional to 28,512.08, 39,346.72 and 15,936.82

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Solution

The fourth proportional to 28,512.08, 39,346.72 and 15,936.82 is: 21,992.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512.08 : 39,346.72 = 15,936.82 : x
  2. Step 2: Convert to fraction form
    28,512.08/39,346.72 = 15,936.82/x
  3. Step 3: Cross multiply
    28,512.08x = 39,346.72 × 15,936.82
  4. Step 4: Simplify right side
    28,512.08x = 627,061,594.23
  5. Step 5: Solve for x
    x = 627,061,594.23/28,512.08
  6. Step 6: Final answer
    x = 21,992.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.