Home / 19,927.80-27,493.56-12,371.44

Finding the Fourth Proportional to 19,927.80, 27,493.56 and 12,371.44

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Solution

The fourth proportional to 19,927.80, 27,493.56 and 12,371.44 is: 17,068.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,927.80 : 27,493.56 = 12,371.44 : x
  2. Step 2: Convert to fraction form
    19,927.80/27,493.56 = 12,371.44/x
  3. Step 3: Cross multiply
    19,927.80x = 27,493.56 × 12,371.44
  4. Step 4: Simplify right side
    19,927.80x = 340,134,927.93
  5. Step 5: Solve for x
    x = 340,134,927.93/19,927.80
  6. Step 6: Final answer
    x = 17,068.36

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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.