Home / 28,768.38-39,690.85-16,823.26

Finding the Fourth Proportional to 28,768.38, 39,690.85 and 16,823.26

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Solution

The fourth proportional to 28,768.38, 39,690.85 and 16,823.26 is: 23,210.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.38 : 39,690.85 = 16,823.26 : x
  2. Step 2: Convert to fraction form
    28,768.38/39,690.85 = 16,823.26/x
  3. Step 3: Cross multiply
    28,768.38x = 39,690.85 × 16,823.26
  4. Step 4: Simplify right side
    28,768.38x = 667,729,489.17
  5. Step 5: Solve for x
    x = 667,729,489.17/28,768.38
  6. Step 6: Final answer
    x = 23,210.53

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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.