Home / 19,368.62-29,049.74-18,107.75

Finding the Fourth Proportional to 19,368.62, 29,049.74 and 18,107.75

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Solution

The fourth proportional to 19,368.62, 29,049.74 and 18,107.75 is: 27,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368.62 : 29,049.74 = 18,107.75 : x
  2. Step 2: Convert to fraction form
    19,368.62/29,049.74 = 18,107.75/x
  3. Step 3: Cross multiply
    19,368.62x = 29,049.74 × 18,107.75
  4. Step 4: Simplify right side
    19,368.62x = 526,025,479.47
  5. Step 5: Solve for x
    x = 526,025,479.47/19,368.62
  6. Step 6: Final answer
    x = 27,158.65

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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.