Home / 21,979.89-32,977.13-14,613.35

Finding the Fourth Proportional to 21,979.89, 32,977.13 and 14,613.35

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Solution

The fourth proportional to 21,979.89, 32,977.13 and 14,613.35 is: 21,924.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,979.89 : 32,977.13 = 14,613.35 : x
  2. Step 2: Convert to fraction form
    21,979.89/32,977.13 = 14,613.35/x
  3. Step 3: Cross multiply
    21,979.89x = 32,977.13 × 14,613.35
  4. Step 4: Simplify right side
    21,979.89x = 481,906,104.73
  5. Step 5: Solve for x
    x = 481,906,104.73/21,979.89
  6. Step 6: Final answer
    x = 21,924.86

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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.