Home / 19,586-27,030.12-12,135.44

Finding the Fourth Proportional to 19,586, 27,030.12 and 12,135.44

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Solution

The fourth proportional to 19,586, 27,030.12 and 12,135.44 is: 16,747.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,586 : 27,030.12 = 12,135.44 : x
  2. Step 2: Convert to fraction form
    19,586/27,030.12 = 12,135.44/x
  3. Step 3: Cross multiply
    19,586x = 27,030.12 × 12,135.44
  4. Step 4: Simplify right side
    19,586x = 328,022,399.45
  5. Step 5: Solve for x
    x = 328,022,399.45/19,586
  6. Step 6: Final answer
    x = 16,747.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.