Home / 19,322.75-28,986.60-5,471.75

Finding the Fourth Proportional to 19,322.75, 28,986.60 and 5,471.75

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Solution

The fourth proportional to 19,322.75, 28,986.60 and 5,471.75 is: 8,208.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,322.75 : 28,986.60 = 5,471.75 : x
  2. Step 2: Convert to fraction form
    19,322.75/28,986.60 = 5,471.75/x
  3. Step 3: Cross multiply
    19,322.75x = 28,986.60 × 5,471.75
  4. Step 4: Simplify right side
    19,322.75x = 158,607,428.55
  5. Step 5: Solve for x
    x = 158,607,428.55/19,322.75
  6. Step 6: Final answer
    x = 8,208.33

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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.