Home / 19,319.81-28,942.11-14,244.75

Finding the Fourth Proportional to 19,319.81, 28,942.11 and 14,244.75

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Solution

The fourth proportional to 19,319.81, 28,942.11 and 14,244.75 is: 21,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.81 : 28,942.11 = 14,244.75 : x
  2. Step 2: Convert to fraction form
    19,319.81/28,942.11 = 14,244.75/x
  3. Step 3: Cross multiply
    19,319.81x = 28,942.11 × 14,244.75
  4. Step 4: Simplify right side
    19,319.81x = 412,273,121.42
  5. Step 5: Solve for x
    x = 412,273,121.42/19,319.81
  6. Step 6: Final answer
    x = 21,339.40

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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.