Home / 28,668.62-39,561.37-15,922.62

Finding the Fourth Proportional to 28,668.62, 39,561.37 and 15,922.62

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Solution

The fourth proportional to 28,668.62, 39,561.37 and 15,922.62 is: 21,972.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,668.62 : 39,561.37 = 15,922.62 : x
  2. Step 2: Convert to fraction form
    28,668.62/39,561.37 = 15,922.62/x
  3. Step 3: Cross multiply
    28,668.62x = 39,561.37 × 15,922.62
  4. Step 4: Simplify right side
    28,668.62x = 629,920,621.38
  5. Step 5: Solve for x
    x = 629,920,621.38/28,668.62
  6. Step 6: Final answer
    x = 21,972.48

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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.