Home / 21,942.99-30,268.32-13,448.92

Finding the Fourth Proportional to 21,942.99, 30,268.32 and 13,448.92

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Solution

The fourth proportional to 21,942.99, 30,268.32 and 13,448.92 is: 18,551.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942.99 : 30,268.32 = 13,448.92 : x
  2. Step 2: Convert to fraction form
    21,942.99/30,268.32 = 13,448.92/x
  3. Step 3: Cross multiply
    21,942.99x = 30,268.32 × 13,448.92
  4. Step 4: Simplify right side
    21,942.99x = 407,076,214.21
  5. Step 5: Solve for x
    x = 407,076,214.21/21,942.99
  6. Step 6: Final answer
    x = 18,551.54

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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.