Home / 21,730.43-29,987.65-11,794.43

Finding the Fourth Proportional to 21,730.43, 29,987.65 and 11,794.43

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Solution

The fourth proportional to 21,730.43, 29,987.65 and 11,794.43 is: 16,276.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,730.43 : 29,987.65 = 11,794.43 : x
  2. Step 2: Convert to fraction form
    21,730.43/29,987.65 = 11,794.43/x
  3. Step 3: Cross multiply
    21,730.43x = 29,987.65 × 11,794.43
  4. Step 4: Simplify right side
    21,730.43x = 353,687,238.79
  5. Step 5: Solve for x
    x = 353,687,238.79/21,730.43
  6. Step 6: Final answer
    x = 16,276.13

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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.