Home / 20,544.91-28,352.03-11,113.47

Finding the Fourth Proportional to 20,544.91, 28,352.03 and 11,113.47

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Solution

The fourth proportional to 20,544.91, 28,352.03 and 11,113.47 is: 15,336.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.91 : 28,352.03 = 11,113.47 : x
  2. Step 2: Convert to fraction form
    20,544.91/28,352.03 = 11,113.47/x
  3. Step 3: Cross multiply
    20,544.91x = 28,352.03 × 11,113.47
  4. Step 4: Simplify right side
    20,544.91x = 315,089,379.28
  5. Step 5: Solve for x
    x = 315,089,379.28/20,544.91
  6. Step 6: Final answer
    x = 15,336.62

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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.