Home / 20,704.26-28,572.39-11,273.34

Finding the Fourth Proportional to 20,704.26, 28,572.39 and 11,273.34

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Solution

The fourth proportional to 20,704.26, 28,572.39 and 11,273.34 is: 15,557.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.26 : 28,572.39 = 11,273.34 : x
  2. Step 2: Convert to fraction form
    20,704.26/28,572.39 = 11,273.34/x
  3. Step 3: Cross multiply
    20,704.26x = 28,572.39 × 11,273.34
  4. Step 4: Simplify right side
    20,704.26x = 322,106,267.08
  5. Step 5: Solve for x
    x = 322,106,267.08/20,704.26
  6. Step 6: Final answer
    x = 15,557.49

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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.