Home / 20,203.24-27,879.84-11,250.55

Finding the Fourth Proportional to 20,203.24, 27,879.84 and 11,250.55

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Solution

The fourth proportional to 20,203.24, 27,879.84 and 11,250.55 is: 15,525.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.24 : 27,879.84 = 11,250.55 : x
  2. Step 2: Convert to fraction form
    20,203.24/27,879.84 = 11,250.55/x
  3. Step 3: Cross multiply
    20,203.24x = 27,879.84 × 11,250.55
  4. Step 4: Simplify right side
    20,203.24x = 313,663,533.91
  5. Step 5: Solve for x
    x = 313,663,533.91/20,203.24
  6. Step 6: Final answer
    x = 15,525.41

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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.