Home / 21,414.26-29,550.72-11,854.51

Finding the Fourth Proportional to 21,414.26, 29,550.72 and 11,854.51

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Solution

The fourth proportional to 21,414.26, 29,550.72 and 11,854.51 is: 16,358.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,414.26 : 29,550.72 = 11,854.51 : x
  2. Step 2: Convert to fraction form
    21,414.26/29,550.72 = 11,854.51/x
  3. Step 3: Cross multiply
    21,414.26x = 29,550.72 × 11,854.51
  4. Step 4: Simplify right side
    21,414.26x = 350,309,276.32
  5. Step 5: Solve for x
    x = 350,309,276.32/21,414.26
  6. Step 6: Final answer
    x = 16,358.69

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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.