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Finding the Fourth Proportional to 20,012, 27,618.18 and 11,630.12

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Solution

The fourth proportional to 20,012, 27,618.18 and 11,630.12 is: 16,050.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012 : 27,618.18 = 11,630.12 : x
  2. Step 2: Convert to fraction form
    20,012/27,618.18 = 11,630.12/x
  3. Step 3: Cross multiply
    20,012x = 27,618.18 × 11,630.12
  4. Step 4: Simplify right side
    20,012x = 321,202,747.58
  5. Step 5: Solve for x
    x = 321,202,747.58/20,012
  6. Step 6: Final answer
    x = 16,050.51

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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.