Home / 19,371.28-29,083.96-12,839.44

Finding the Fourth Proportional to 19,371.28, 29,083.96 and 12,839.44

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Solution

The fourth proportional to 19,371.28, 29,083.96 and 12,839.44 is: 19,277.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,371.28 : 29,083.96 = 12,839.44 : x
  2. Step 2: Convert to fraction form
    19,371.28/29,083.96 = 12,839.44/x
  3. Step 3: Cross multiply
    19,371.28x = 29,083.96 × 12,839.44
  4. Step 4: Simplify right side
    19,371.28x = 373,421,759.38
  5. Step 5: Solve for x
    x = 373,421,759.38/19,371.28
  6. Step 6: Final answer
    x = 19,277.08

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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.