Home / 28,102.55-38,789.33-16,169.73

Finding the Fourth Proportional to 28,102.55, 38,789.33 and 16,169.73

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Solution

The fourth proportional to 28,102.55, 38,789.33 and 16,169.73 is: 22,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.55 : 38,789.33 = 16,169.73 : x
  2. Step 2: Convert to fraction form
    28,102.55/38,789.33 = 16,169.73/x
  3. Step 3: Cross multiply
    28,102.55x = 38,789.33 × 16,169.73
  4. Step 4: Simplify right side
    28,102.55x = 627,212,857.63
  5. Step 5: Solve for x
    x = 627,212,857.63/28,102.55
  6. Step 6: Final answer
    x = 22,318.72

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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.