Home / 20,556.36-28,367.76-11,124.96

Finding the Fourth Proportional to 20,556.36, 28,367.76 and 11,124.96

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Solution

The fourth proportional to 20,556.36, 28,367.76 and 11,124.96 is: 15,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556.36 : 28,367.76 = 11,124.96 : x
  2. Step 2: Convert to fraction form
    20,556.36/28,367.76 = 11,124.96/x
  3. Step 3: Cross multiply
    20,556.36x = 28,367.76 × 11,124.96
  4. Step 4: Simplify right side
    20,556.36x = 315,590,195.29
  5. Step 5: Solve for x
    x = 315,590,195.29/20,556.36
  6. Step 6: Final answer
    x = 15,352.44

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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.