Home / 18,421.08-27,631.62-5,273.51

Finding the Fourth Proportional to 18,421.08, 27,631.62 and 5,273.51

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Solution

The fourth proportional to 18,421.08, 27,631.62 and 5,273.51 is: 7,910.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.08 : 27,631.62 = 5,273.51 : x
  2. Step 2: Convert to fraction form
    18,421.08/27,631.62 = 5,273.51/x
  3. Step 3: Cross multiply
    18,421.08x = 27,631.62 × 5,273.51
  4. Step 4: Simplify right side
    18,421.08x = 145,715,486.23
  5. Step 5: Solve for x
    x = 145,715,486.23/18,421.08
  6. Step 6: Final answer
    x = 7,910.26

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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.