Home / 27,658.20-38,171.75-16,900.86

Finding the Fourth Proportional to 27,658.20, 38,171.75 and 16,900.86

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Solution

The fourth proportional to 27,658.20, 38,171.75 and 16,900.86 is: 23,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,658.20 : 38,171.75 = 16,900.86 : x
  2. Step 2: Convert to fraction form
    27,658.20/38,171.75 = 16,900.86/x
  3. Step 3: Cross multiply
    27,658.20x = 38,171.75 × 16,900.86
  4. Step 4: Simplify right side
    27,658.20x = 645,135,318.20
  5. Step 5: Solve for x
    x = 645,135,318.20/27,658.20
  6. Step 6: Final answer
    x = 23,325.28

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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.