Home / 28,871.69-43,274.66-12,221.33

Finding the Fourth Proportional to 28,871.69, 43,274.66 and 12,221.33

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Solution

The fourth proportional to 28,871.69, 43,274.66 and 12,221.33 is: 18,318.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.69 : 43,274.66 = 12,221.33 : x
  2. Step 2: Convert to fraction form
    28,871.69/43,274.66 = 12,221.33/x
  3. Step 3: Cross multiply
    28,871.69x = 43,274.66 × 12,221.33
  4. Step 4: Simplify right side
    28,871.69x = 528,873,623.02
  5. Step 5: Solve for x
    x = 528,873,623.02/28,871.69
  6. Step 6: Final answer
    x = 18,318.07

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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.