Home / 21,633.12-29,851.20-12,201.84

Finding the Fourth Proportional to 21,633.12, 29,851.20 and 12,201.84

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Solution

The fourth proportional to 21,633.12, 29,851.20 and 12,201.84 is: 16,837.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,633.12 : 29,851.20 = 12,201.84 : x
  2. Step 2: Convert to fraction form
    21,633.12/29,851.20 = 12,201.84/x
  3. Step 3: Cross multiply
    21,633.12x = 29,851.20 × 12,201.84
  4. Step 4: Simplify right side
    21,633.12x = 364,239,566.21
  5. Step 5: Solve for x
    x = 364,239,566.21/21,633.12
  6. Step 6: Final answer
    x = 16,837.13

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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.