Home / 21,326.69-29,429.49-11,766.68

Finding the Fourth Proportional to 21,326.69, 29,429.49 and 11,766.68

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Solution

The fourth proportional to 21,326.69, 29,429.49 and 11,766.68 is: 16,237.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.69 : 29,429.49 = 11,766.68 : x
  2. Step 2: Convert to fraction form
    21,326.69/29,429.49 = 11,766.68/x
  3. Step 3: Cross multiply
    21,326.69x = 29,429.49 × 11,766.68
  4. Step 4: Simplify right side
    21,326.69x = 346,287,391.39
  5. Step 5: Solve for x
    x = 346,287,391.39/21,326.69
  6. Step 6: Final answer
    x = 16,237.28

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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.