Home / 20,360.16-28,096.47-11,408.22

Finding the Fourth Proportional to 20,360.16, 28,096.47 and 11,408.22

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Solution

The fourth proportional to 20,360.16, 28,096.47 and 11,408.22 is: 15,743.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.16 : 28,096.47 = 11,408.22 : x
  2. Step 2: Convert to fraction form
    20,360.16/28,096.47 = 11,408.22/x
  3. Step 3: Cross multiply
    20,360.16x = 28,096.47 × 11,408.22
  4. Step 4: Simplify right side
    20,360.16x = 320,530,710.98
  5. Step 5: Solve for x
    x = 320,530,710.98/20,360.16
  6. Step 6: Final answer
    x = 15,743.03

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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.