Home / 28,788.96-39,728.84-16,691.79

Finding the Fourth Proportional to 28,788.96, 39,728.84 and 16,691.79

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Solution

The fourth proportional to 28,788.96, 39,728.84 and 16,691.79 is: 23,034.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.96 : 39,728.84 = 16,691.79 : x
  2. Step 2: Convert to fraction form
    28,788.96/39,728.84 = 16,691.79/x
  3. Step 3: Cross multiply
    28,788.96x = 39,728.84 × 16,691.79
  4. Step 4: Simplify right side
    28,788.96x = 663,145,255.58
  5. Step 5: Solve for x
    x = 663,145,255.58/28,788.96
  6. Step 6: Final answer
    x = 23,034.71

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1.5x scale

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.