Home / 28,167.75-38,860.11-16,224.69

Finding the Fourth Proportional to 28,167.75, 38,860.11 and 16,224.69

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Solution

The fourth proportional to 28,167.75, 38,860.11 and 16,224.69 is: 22,383.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,167.75 : 38,860.11 = 16,224.69 : x
  2. Step 2: Convert to fraction form
    28,167.75/38,860.11 = 16,224.69/x
  3. Step 3: Cross multiply
    28,167.75x = 38,860.11 × 16,224.69
  4. Step 4: Simplify right side
    28,167.75x = 630,493,238.12
  5. Step 5: Solve for x
    x = 630,493,238.12/28,167.75
  6. Step 6: Final answer
    x = 22,383.51

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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.