Home / 20,313.22-28,034.84-11,361.22

Finding the Fourth Proportional to 20,313.22, 28,034.84 and 11,361.22

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Solution

The fourth proportional to 20,313.22, 28,034.84 and 11,361.22 is: 15,679.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,313.22 : 28,034.84 = 11,361.22 : x
  2. Step 2: Convert to fraction form
    20,313.22/28,034.84 = 11,361.22/x
  3. Step 3: Cross multiply
    20,313.22x = 28,034.84 × 11,361.22
  4. Step 4: Simplify right side
    20,313.22x = 318,509,984.90
  5. Step 5: Solve for x
    x = 318,509,984.90/20,313.22
  6. Step 6: Final answer
    x = 15,679.94

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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.