Home / 28,675.62-39,573.66-15,928.85

Finding the Fourth Proportional to 28,675.62, 39,573.66 and 15,928.85

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Solution

The fourth proportional to 28,675.62, 39,573.66 and 15,928.85 is: 21,982.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,675.62 : 39,573.66 = 15,928.85 : x
  2. Step 2: Convert to fraction form
    28,675.62/39,573.66 = 15,928.85/x
  3. Step 3: Cross multiply
    28,675.62x = 39,573.66 × 15,928.85
  4. Step 4: Simplify right side
    28,675.62x = 630,362,696.22
  5. Step 5: Solve for x
    x = 630,362,696.22/28,675.62
  6. Step 6: Final answer
    x = 21,982.53

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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.