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Finding the Fourth Proportional to 18,419.68, 27,629.71 and 14,745.27

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Solution

The fourth proportional to 18,419.68, 27,629.71 and 14,745.27 is: 22,118.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.68 : 27,629.71 = 14,745.27 : x
  2. Step 2: Convert to fraction form
    18,419.68/27,629.71 = 14,745.27/x
  3. Step 3: Cross multiply
    18,419.68x = 27,629.71 × 14,745.27
  4. Step 4: Simplify right side
    18,419.68x = 407,407,395.82
  5. Step 5: Solve for x
    x = 407,407,395.82/18,419.68
  6. Step 6: Final answer
    x = 22,118.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.