Home / 28,727.75-39,644.49-16,788.71

Finding the Fourth Proportional to 28,727.75, 39,644.49 and 16,788.71

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Solution

The fourth proportional to 28,727.75, 39,644.49 and 16,788.71 is: 23,168.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,727.75 : 39,644.49 = 16,788.71 : x
  2. Step 2: Convert to fraction form
    28,727.75/39,644.49 = 16,788.71/x
  3. Step 3: Cross multiply
    28,727.75x = 39,644.49 × 16,788.71
  4. Step 4: Simplify right side
    28,727.75x = 665,579,647.49
  5. Step 5: Solve for x
    x = 665,579,647.49/28,727.75
  6. Step 6: Final answer
    x = 23,168.53

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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.