Home / 21,081.30-29,094.12-11,651.73

Finding the Fourth Proportional to 21,081.30, 29,094.12 and 11,651.73

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Solution

The fourth proportional to 21,081.30, 29,094.12 and 11,651.73 is: 16,080.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081.30 : 29,094.12 = 11,651.73 : x
  2. Step 2: Convert to fraction form
    21,081.30/29,094.12 = 11,651.73/x
  3. Step 3: Cross multiply
    21,081.30x = 29,094.12 × 11,651.73
  4. Step 4: Simplify right side
    21,081.30x = 338,996,830.83
  5. Step 5: Solve for x
    x = 338,996,830.83/21,081.30
  6. Step 6: Final answer
    x = 16,080.45

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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.