Home / 20,313.93-28,033.01-11,361.41

Finding the Fourth Proportional to 20,313.93, 28,033.01 and 11,361.41

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Solution

The fourth proportional to 20,313.93, 28,033.01 and 11,361.41 is: 15,678.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,313.93 : 28,033.01 = 11,361.41 : x
  2. Step 2: Convert to fraction form
    20,313.93/28,033.01 = 11,361.41/x
  3. Step 3: Cross multiply
    20,313.93x = 28,033.01 × 11,361.41
  4. Step 4: Simplify right side
    20,313.93x = 318,494,483.14
  5. Step 5: Solve for x
    x = 318,494,483.14/20,313.93
  6. Step 6: Final answer
    x = 15,678.63

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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.