Home / 19,005.90-28,485.50-10,668.44

Finding the Fourth Proportional to 19,005.90, 28,485.50 and 10,668.44

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Solution

The fourth proportional to 19,005.90, 28,485.50 and 10,668.44 is: 15,989.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.90 : 28,485.50 = 10,668.44 : x
  2. Step 2: Convert to fraction form
    19,005.90/28,485.50 = 10,668.44/x
  3. Step 3: Cross multiply
    19,005.90x = 28,485.50 × 10,668.44
  4. Step 4: Simplify right side
    19,005.90x = 303,895,651.85
  5. Step 5: Solve for x
    x = 303,895,651.85/19,005.90
  6. Step 6: Final answer
    x = 15,989.54

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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.