Home / 19,839.45-27,370.98-12,669.64

Finding the Fourth Proportional to 19,839.45, 27,370.98 and 12,669.64

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Solution

The fourth proportional to 19,839.45, 27,370.98 and 12,669.64 is: 17,479.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839.45 : 27,370.98 = 12,669.64 : x
  2. Step 2: Convert to fraction form
    19,839.45/27,370.98 = 12,669.64/x
  3. Step 3: Cross multiply
    19,839.45x = 27,370.98 × 12,669.64
  4. Step 4: Simplify right side
    19,839.45x = 346,780,394.62
  5. Step 5: Solve for x
    x = 346,780,394.62/19,839.45
  6. Step 6: Final answer
    x = 17,479.33

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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.