Home / 20,738.44-28,617.82-11,784.70

Finding the Fourth Proportional to 20,738.44, 28,617.82 and 11,784.70

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Solution

The fourth proportional to 20,738.44, 28,617.82 and 11,784.70 is: 16,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.44 : 28,617.82 = 11,784.70 : x
  2. Step 2: Convert to fraction form
    20,738.44/28,617.82 = 11,784.70/x
  3. Step 3: Cross multiply
    20,738.44x = 28,617.82 × 11,784.70
  4. Step 4: Simplify right side
    20,738.44x = 337,252,423.35
  5. Step 5: Solve for x
    x = 337,252,423.35/20,738.44
  6. Step 6: Final answer
    x = 16,262.19

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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.