Home / 28,788.56-39,727.32-16,213.04

Finding the Fourth Proportional to 28,788.56, 39,727.32 and 16,213.04

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Solution

The fourth proportional to 28,788.56, 39,727.32 and 16,213.04 is: 22,373.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.56 : 39,727.32 = 16,213.04 : x
  2. Step 2: Convert to fraction form
    28,788.56/39,727.32 = 16,213.04/x
  3. Step 3: Cross multiply
    28,788.56x = 39,727.32 × 16,213.04
  4. Step 4: Simplify right side
    28,788.56x = 644,100,628.25
  5. Step 5: Solve for x
    x = 644,100,628.25/28,788.56
  6. Step 6: Final answer
    x = 22,373.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.