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Finding the Fourth Proportional to 18,271.14, 27,406.73 and 4,420.14

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Solution

The fourth proportional to 18,271.14, 27,406.73 and 4,420.14 is: 6,630.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.14 : 27,406.73 = 4,420.14 : x
  2. Step 2: Convert to fraction form
    18,271.14/27,406.73 = 4,420.14/x
  3. Step 3: Cross multiply
    18,271.14x = 27,406.73 × 4,420.14
  4. Step 4: Simplify right side
    18,271.14x = 121,141,583.54
  5. Step 5: Solve for x
    x = 121,141,583.54/18,271.14
  6. Step 6: Final answer
    x = 6,630.21

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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.