Home / 21,566.14-29,760.14-12,135.31

Finding the Fourth Proportional to 21,566.14, 29,760.14 and 12,135.31

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Solution

The fourth proportional to 21,566.14, 29,760.14 and 12,135.31 is: 16,746.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,566.14 : 29,760.14 = 12,135.31 : x
  2. Step 2: Convert to fraction form
    21,566.14/29,760.14 = 12,135.31/x
  3. Step 3: Cross multiply
    21,566.14x = 29,760.14 × 12,135.31
  4. Step 4: Simplify right side
    21,566.14x = 361,148,480.48
  5. Step 5: Solve for x
    x = 361,148,480.48/21,566.14
  6. Step 6: Final answer
    x = 16,746.09

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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.