Home / 19,310.58-28,964.91-11,309.85

Finding the Fourth Proportional to 19,310.58, 28,964.91 and 11,309.85

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Solution

The fourth proportional to 19,310.58, 28,964.91 and 11,309.85 is: 16,964.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310.58 : 28,964.91 = 11,309.85 : x
  2. Step 2: Convert to fraction form
    19,310.58/28,964.91 = 11,309.85/x
  3. Step 3: Cross multiply
    19,310.58x = 28,964.91 × 11,309.85
  4. Step 4: Simplify right side
    19,310.58x = 327,588,787.36
  5. Step 5: Solve for x
    x = 327,588,787.36/19,310.58
  6. Step 6: Final answer
    x = 16,964.21

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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.