Home / 20,544.91-28,351.98-11,113.48

Finding the Fourth Proportional to 20,544.91, 28,351.98 and 11,113.48

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Solution

The fourth proportional to 20,544.91, 28,351.98 and 11,113.48 is: 15,336.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.91 : 28,351.98 = 11,113.48 : x
  2. Step 2: Convert to fraction form
    20,544.91/28,351.98 = 11,113.48/x
  3. Step 3: Cross multiply
    20,544.91x = 28,351.98 × 11,113.48
  4. Step 4: Simplify right side
    20,544.91x = 315,089,162.69
  5. Step 5: Solve for x
    x = 315,089,162.69/20,544.91
  6. Step 6: Final answer
    x = 15,336.60

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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.