Home / 28,788.94-39,728.82-16,691.77

Finding the Fourth Proportional to 28,788.94, 39,728.82 and 16,691.77

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Solution

The fourth proportional to 28,788.94, 39,728.82 and 16,691.77 is: 23,034.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.94 : 39,728.82 = 16,691.77 : x
  2. Step 2: Convert to fraction form
    28,788.94/39,728.82 = 16,691.77/x
  3. Step 3: Cross multiply
    28,788.94x = 39,728.82 × 16,691.77
  4. Step 4: Simplify right side
    28,788.94x = 663,144,043.71
  5. Step 5: Solve for x
    x = 663,144,043.71/28,788.94
  6. Step 6: Final answer
    x = 23,034.68

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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.