Home / 14,436-21,542.28-12,880.80

Finding the Fourth Proportional to 14,436, 21,542.28 and 12,880.80

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Solution

The fourth proportional to 14,436, 21,542.28 and 12,880.80 is: 19,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,436 : 21,542.28 = 12,880.80 : x
  2. Step 2: Convert to fraction form
    14,436/21,542.28 = 12,880.80/x
  3. Step 3: Cross multiply
    14,436x = 21,542.28 × 12,880.80
  4. Step 4: Simplify right side
    14,436x = 277,481,800.22
  5. Step 5: Solve for x
    x = 277,481,800.22/14,436
  6. Step 6: Final answer
    x = 19,221.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.