Home / 19,771.16-29,623.92-13,915.47

Finding the Fourth Proportional to 19,771.16, 29,623.92 and 13,915.47

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Solution

The fourth proportional to 19,771.16, 29,623.92 and 13,915.47 is: 20,850.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.16 : 29,623.92 = 13,915.47 : x
  2. Step 2: Convert to fraction form
    19,771.16/29,623.92 = 13,915.47/x
  3. Step 3: Cross multiply
    19,771.16x = 29,623.92 × 13,915.47
  4. Step 4: Simplify right side
    19,771.16x = 412,230,770.04
  5. Step 5: Solve for x
    x = 412,230,770.04/19,771.16
  6. Step 6: Final answer
    x = 20,850.11

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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.