Home / 19,607.85-27,045.14-12,891.33

Finding the Fourth Proportional to 19,607.85, 27,045.14 and 12,891.33

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Solution

The fourth proportional to 19,607.85, 27,045.14 and 12,891.33 is: 17,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,607.85 : 27,045.14 = 12,891.33 : x
  2. Step 2: Convert to fraction form
    19,607.85/27,045.14 = 12,891.33/x
  3. Step 3: Cross multiply
    19,607.85x = 27,045.14 × 12,891.33
  4. Step 4: Simplify right side
    19,607.85x = 348,647,721.64
  5. Step 5: Solve for x
    x = 348,647,721.64/19,607.85
  6. Step 6: Final answer
    x = 17,781.03

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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.