Home / 20,021.99-27,629.91-11,070.27

Finding the Fourth Proportional to 20,021.99, 27,629.91 and 11,070.27

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Solution

The fourth proportional to 20,021.99, 27,629.91 and 11,070.27 is: 15,276.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.99 : 27,629.91 = 11,070.27 : x
  2. Step 2: Convert to fraction form
    20,021.99/27,629.91 = 11,070.27/x
  3. Step 3: Cross multiply
    20,021.99x = 27,629.91 × 11,070.27
  4. Step 4: Simplify right side
    20,021.99x = 305,870,563.78
  5. Step 5: Solve for x
    x = 305,870,563.78/20,021.99
  6. Step 6: Final answer
    x = 15,276.74

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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.