Home / 20,694.76-28,559.28-11,263.84

Finding the Fourth Proportional to 20,694.76, 28,559.28 and 11,263.84

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Solution

The fourth proportional to 20,694.76, 28,559.28 and 11,263.84 is: 15,544.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.76 : 28,559.28 = 11,263.84 : x
  2. Step 2: Convert to fraction form
    20,694.76/28,559.28 = 11,263.84/x
  3. Step 3: Cross multiply
    20,694.76x = 28,559.28 × 11,263.84
  4. Step 4: Simplify right side
    20,694.76x = 321,687,160.44
  5. Step 5: Solve for x
    x = 321,687,160.44/20,694.76
  6. Step 6: Final answer
    x = 15,544.38

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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.