Home / 19,005.30-28,556.55-16,866.90

Finding the Fourth Proportional to 19,005.30, 28,556.55 and 16,866.90

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Solution

The fourth proportional to 19,005.30, 28,556.55 and 16,866.90 is: 25,343.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.30 : 28,556.55 = 16,866.90 : x
  2. Step 2: Convert to fraction form
    19,005.30/28,556.55 = 16,866.90/x
  3. Step 3: Cross multiply
    19,005.30x = 28,556.55 × 16,866.90
  4. Step 4: Simplify right side
    19,005.30x = 481,660,473.20
  5. Step 5: Solve for x
    x = 481,660,473.20/19,005.30
  6. Step 6: Final answer
    x = 25,343.48

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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.