Home / 21,936.87-30,263.22-13,977.27

Finding the Fourth Proportional to 21,936.87, 30,263.22 and 13,977.27

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Solution

The fourth proportional to 21,936.87, 30,263.22 and 13,977.27 is: 19,282.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,936.87 : 30,263.22 = 13,977.27 : x
  2. Step 2: Convert to fraction form
    21,936.87/30,263.22 = 13,977.27/x
  3. Step 3: Cross multiply
    21,936.87x = 30,263.22 × 13,977.27
  4. Step 4: Simplify right side
    21,936.87x = 422,997,197.01
  5. Step 5: Solve for x
    x = 422,997,197.01/21,936.87
  6. Step 6: Final answer
    x = 19,282.48

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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.