Home / 21,618.25-29,833.19-11,682.25

Finding the Fourth Proportional to 21,618.25, 29,833.19 and 11,682.25

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Solution

The fourth proportional to 21,618.25, 29,833.19 and 11,682.25 is: 16,121.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.25 : 29,833.19 = 11,682.25 : x
  2. Step 2: Convert to fraction form
    21,618.25/29,833.19 = 11,682.25/x
  3. Step 3: Cross multiply
    21,618.25x = 29,833.19 × 11,682.25
  4. Step 4: Simplify right side
    21,618.25x = 348,518,725.47
  5. Step 5: Solve for x
    x = 348,518,725.47/21,618.25
  6. Step 6: Final answer
    x = 16,121.51

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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.