Home / 28,768.25-39,690.68-16,823.14

Finding the Fourth Proportional to 28,768.25, 39,690.68 and 16,823.14

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Solution

The fourth proportional to 28,768.25, 39,690.68 and 16,823.14 is: 23,210.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.25 : 39,690.68 = 16,823.14 : x
  2. Step 2: Convert to fraction form
    28,768.25/39,690.68 = 16,823.14/x
  3. Step 3: Cross multiply
    28,768.25x = 39,690.68 × 16,823.14
  4. Step 4: Simplify right side
    28,768.25x = 667,721,682.99
  5. Step 5: Solve for x
    x = 667,721,682.99/28,768.25
  6. Step 6: Final answer
    x = 23,210.37

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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.