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Finding the Fourth Proportional to 18,410.20, 27,615.30 and 5,930.20

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Solution

The fourth proportional to 18,410.20, 27,615.30 and 5,930.20 is: 8,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.20 : 27,615.30 = 5,930.20 : x
  2. Step 2: Convert to fraction form
    18,410.20/27,615.30 = 5,930.20/x
  3. Step 3: Cross multiply
    18,410.20x = 27,615.30 × 5,930.20
  4. Step 4: Simplify right side
    18,410.20x = 163,764,252.06
  5. Step 5: Solve for x
    x = 163,764,252.06/18,410.20
  6. Step 6: Final answer
    x = 8,895.30

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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.