Home / 18,832.27-28,257.68-13,321.03

Finding the Fourth Proportional to 18,832.27, 28,257.68 and 13,321.03

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Solution

The fourth proportional to 18,832.27, 28,257.68 and 13,321.03 is: 19,988.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.27 : 28,257.68 = 13,321.03 : x
  2. Step 2: Convert to fraction form
    18,832.27/28,257.68 = 13,321.03/x
  3. Step 3: Cross multiply
    18,832.27x = 28,257.68 × 13,321.03
  4. Step 4: Simplify right side
    18,832.27x = 376,421,403.01
  5. Step 5: Solve for x
    x = 376,421,403.01/18,832.27
  6. Step 6: Final answer
    x = 19,988.11

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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.