Home / 21,182.00-29,229.30-11,620.35

Finding the Fourth Proportional to 21,182.00, 29,229.30 and 11,620.35

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Solution

The fourth proportional to 21,182.00, 29,229.30 and 11,620.35 is: 16,035.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.00 : 29,229.30 = 11,620.35 : x
  2. Step 2: Convert to fraction form
    21,182.00/29,229.30 = 11,620.35/x
  3. Step 3: Cross multiply
    21,182.00x = 29,229.30 × 11,620.35
  4. Step 4: Simplify right side
    21,182.00x = 339,654,696.26
  5. Step 5: Solve for x
    x = 339,654,696.26/21,182.00
  6. Step 6: Final answer
    x = 16,035.07

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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.