Home / 28,169.94-38,879.28-16,240.26

Finding the Fourth Proportional to 28,169.94, 38,879.28 and 16,240.26

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Solution

The fourth proportional to 28,169.94, 38,879.28 and 16,240.26 is: 22,414.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169.94 : 38,879.28 = 16,240.26 : x
  2. Step 2: Convert to fraction form
    28,169.94/38,879.28 = 16,240.26/x
  3. Step 3: Cross multiply
    28,169.94x = 38,879.28 × 16,240.26
  4. Step 4: Simplify right side
    28,169.94x = 631,409,615.81
  5. Step 5: Solve for x
    x = 631,409,615.81/28,169.94
  6. Step 6: Final answer
    x = 22,414.30

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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.