Home / 20,674.44-28,530.18-11,242.80

Finding the Fourth Proportional to 20,674.44, 28,530.18 and 11,242.80

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Solution

The fourth proportional to 20,674.44, 28,530.18 and 11,242.80 is: 15,514.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.44 : 28,530.18 = 11,242.80 : x
  2. Step 2: Convert to fraction form
    20,674.44/28,530.18 = 11,242.80/x
  3. Step 3: Cross multiply
    20,674.44x = 28,530.18 × 11,242.80
  4. Step 4: Simplify right side
    20,674.44x = 320,759,107.70
  5. Step 5: Solve for x
    x = 320,759,107.70/20,674.44
  6. Step 6: Final answer
    x = 15,514.77

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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.