Home / 19,949.88-29,898.72-14,421.72

Finding the Fourth Proportional to 19,949.88, 29,898.72 and 14,421.72

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Solution

The fourth proportional to 19,949.88, 29,898.72 and 14,421.72 is: 21,613.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,949.88 : 29,898.72 = 14,421.72 : x
  2. Step 2: Convert to fraction form
    19,949.88/29,898.72 = 14,421.72/x
  3. Step 3: Cross multiply
    19,949.88x = 29,898.72 × 14,421.72
  4. Step 4: Simplify right side
    19,949.88x = 431,190,968.20
  5. Step 5: Solve for x
    x = 431,190,968.20/19,949.88
  6. Step 6: Final answer
    x = 21,613.71

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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.