Home / 20,750.73-28,634.01-11,797.74

Finding the Fourth Proportional to 20,750.73, 28,634.01 and 11,797.74

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Solution

The fourth proportional to 20,750.73, 28,634.01 and 11,797.74 is: 16,279.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.73 : 28,634.01 = 11,797.74 : x
  2. Step 2: Convert to fraction form
    20,750.73/28,634.01 = 11,797.74/x
  3. Step 3: Cross multiply
    20,750.73x = 28,634.01 × 11,797.74
  4. Step 4: Simplify right side
    20,750.73x = 337,816,605.14
  5. Step 5: Solve for x
    x = 337,816,605.14/20,750.73
  6. Step 6: Final answer
    x = 16,279.75

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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.