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Finding the Fourth Proportional to 18,285.19, 27,427.79 and 4,434.19

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Solution

The fourth proportional to 18,285.19, 27,427.79 and 4,434.19 is: 6,651.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.19 : 27,427.79 = 4,434.19 : x
  2. Step 2: Convert to fraction form
    18,285.19/27,427.79 = 4,434.19/x
  3. Step 3: Cross multiply
    18,285.19x = 27,427.79 × 4,434.19
  4. Step 4: Simplify right side
    18,285.19x = 121,620,032.14
  5. Step 5: Solve for x
    x = 121,620,032.14/18,285.19
  6. Step 6: Final answer
    x = 6,651.29

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.