Home / 21,747.14-32,571.19-12,963.90

Finding the Fourth Proportional to 21,747.14, 32,571.19 and 12,963.90

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Solution

The fourth proportional to 21,747.14, 32,571.19 and 12,963.90 is: 19,416.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,747.14 : 32,571.19 = 12,963.90 : x
  2. Step 2: Convert to fraction form
    21,747.14/32,571.19 = 12,963.90/x
  3. Step 3: Cross multiply
    21,747.14x = 32,571.19 × 12,963.90
  4. Step 4: Simplify right side
    21,747.14x = 422,249,650.04
  5. Step 5: Solve for x
    x = 422,249,650.04/21,747.14
  6. Step 6: Final answer
    x = 19,416.33

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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.