Home / 21,322.73-31,984.18-6,531.59

Finding the Fourth Proportional to 21,322.73, 31,984.18 and 6,531.59

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Solution

The fourth proportional to 21,322.73, 31,984.18 and 6,531.59 is: 9,797.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.73 : 31,984.18 = 6,531.59 : x
  2. Step 2: Convert to fraction form
    21,322.73/31,984.18 = 6,531.59/x
  3. Step 3: Cross multiply
    21,322.73x = 31,984.18 × 6,531.59
  4. Step 4: Simplify right side
    21,322.73x = 208,907,550.25
  5. Step 5: Solve for x
    x = 208,907,550.25/21,322.73
  6. Step 6: Final answer
    x = 9,797.41

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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.