Home / 21,891.22-32,806.58-18,962.26

Finding the Fourth Proportional to 21,891.22, 32,806.58 and 18,962.26

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Solution

The fourth proportional to 21,891.22, 32,806.58 and 18,962.26 is: 28,417.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,891.22 : 32,806.58 = 18,962.26 : x
  2. Step 2: Convert to fraction form
    21,891.22/32,806.58 = 18,962.26/x
  3. Step 3: Cross multiply
    21,891.22x = 32,806.58 × 18,962.26
  4. Step 4: Simplify right side
    21,891.22x = 622,086,899.67
  5. Step 5: Solve for x
    x = 622,086,899.67/21,891.22
  6. Step 6: Final answer
    x = 28,417.19

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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.