Home / 21,693.88-29,940.18-12,262.36

Finding the Fourth Proportional to 21,693.88, 29,940.18 and 12,262.36

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Solution

The fourth proportional to 21,693.88, 29,940.18 and 12,262.36 is: 16,923.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,693.88 : 29,940.18 = 12,262.36 : x
  2. Step 2: Convert to fraction form
    21,693.88/29,940.18 = 12,262.36/x
  3. Step 3: Cross multiply
    21,693.88x = 29,940.18 × 12,262.36
  4. Step 4: Simplify right side
    21,693.88x = 367,137,265.62
  5. Step 5: Solve for x
    x = 367,137,265.62/21,693.88
  6. Step 6: Final answer
    x = 16,923.54

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1.5x scale

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.