Home / 18,421.26-27,631.62-4,570.26

Finding the Fourth Proportional to 18,421.26, 27,631.62 and 4,570.26

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Solution

The fourth proportional to 18,421.26, 27,631.62 and 4,570.26 is: 6,855.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.26 : 27,631.62 = 4,570.26 : x
  2. Step 2: Convert to fraction form
    18,421.26/27,631.62 = 4,570.26/x
  3. Step 3: Cross multiply
    18,421.26x = 27,631.62 × 4,570.26
  4. Step 4: Simplify right side
    18,421.26x = 126,283,687.62
  5. Step 5: Solve for x
    x = 126,283,687.62/18,421.26
  6. Step 6: Final answer
    x = 6,855.32

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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.