Home / 18,936.24-28,408.08-5,790.48

Finding the Fourth Proportional to 18,936.24, 28,408.08 and 5,790.48

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Solution

The fourth proportional to 18,936.24, 28,408.08 and 5,790.48 is: 8,686.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.24 : 28,408.08 = 5,790.48 : x
  2. Step 2: Convert to fraction form
    18,936.24/28,408.08 = 5,790.48/x
  3. Step 3: Cross multiply
    18,936.24x = 28,408.08 × 5,790.48
  4. Step 4: Simplify right side
    18,936.24x = 164,496,419.08
  5. Step 5: Solve for x
    x = 164,496,419.08/18,936.24
  6. Step 6: Final answer
    x = 8,686.86

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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.