Home / 20,360.35-28,096.77-11,161.99

Finding the Fourth Proportional to 20,360.35, 28,096.77 and 11,161.99

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Solution

The fourth proportional to 20,360.35, 28,096.77 and 11,161.99 is: 15,403.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.35 : 28,096.77 = 11,161.99 : x
  2. Step 2: Convert to fraction form
    20,360.35/28,096.77 = 11,161.99/x
  3. Step 3: Cross multiply
    20,360.35x = 28,096.77 × 11,161.99
  4. Step 4: Simplify right side
    20,360.35x = 313,615,865.77
  5. Step 5: Solve for x
    x = 313,615,865.77/20,360.35
  6. Step 6: Final answer
    x = 15,403.26

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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.