Home / 21,620.52-29,836.30-11,684.52

Finding the Fourth Proportional to 21,620.52, 29,836.30 and 11,684.52

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Solution

The fourth proportional to 21,620.52, 29,836.30 and 11,684.52 is: 16,124.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,620.52 : 29,836.30 = 11,684.52 : x
  2. Step 2: Convert to fraction form
    21,620.52/29,836.30 = 11,684.52/x
  3. Step 3: Cross multiply
    21,620.52x = 29,836.30 × 11,684.52
  4. Step 4: Simplify right side
    21,620.52x = 348,622,844.08
  5. Step 5: Solve for x
    x = 348,622,844.08/21,620.52
  6. Step 6: Final answer
    x = 16,124.63

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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.