Home / 20,703.36-28,571.42-11,751.24

Finding the Fourth Proportional to 20,703.36, 28,571.42 and 11,751.24

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Solution

The fourth proportional to 20,703.36, 28,571.42 and 11,751.24 is: 16,217.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703.36 : 28,571.42 = 11,751.24 : x
  2. Step 2: Convert to fraction form
    20,703.36/28,571.42 = 11,751.24/x
  3. Step 3: Cross multiply
    20,703.36x = 28,571.42 × 11,751.24
  4. Step 4: Simplify right side
    20,703.36x = 335,749,613.56
  5. Step 5: Solve for x
    x = 335,749,613.56/20,703.36
  6. Step 6: Final answer
    x = 16,217.16

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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.