Home / 18,087.41-27,098.30-13,355.29

Finding the Fourth Proportional to 18,087.41, 27,098.30 and 13,355.29

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Solution

The fourth proportional to 18,087.41, 27,098.30 and 13,355.29 is: 20,008.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.41 : 27,098.30 = 13,355.29 : x
  2. Step 2: Convert to fraction form
    18,087.41/27,098.30 = 13,355.29/x
  3. Step 3: Cross multiply
    18,087.41x = 27,098.30 × 13,355.29
  4. Step 4: Simplify right side
    18,087.41x = 361,905,620.65
  5. Step 5: Solve for x
    x = 361,905,620.65/18,087.41
  6. Step 6: Final answer
    x = 20,008.71

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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.