Home / 21,329.88-29,435.49-11,898.44

Finding the Fourth Proportional to 21,329.88, 29,435.49 and 11,898.44

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Solution

The fourth proportional to 21,329.88, 29,435.49 and 11,898.44 is: 16,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.88 : 29,435.49 = 11,898.44 : x
  2. Step 2: Convert to fraction form
    21,329.88/29,435.49 = 11,898.44/x
  3. Step 3: Cross multiply
    21,329.88x = 29,435.49 × 11,898.44
  4. Step 4: Simplify right side
    21,329.88x = 350,236,264.46
  5. Step 5: Solve for x
    x = 350,236,264.46/21,329.88
  6. Step 6: Final answer
    x = 16,419.98

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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.