Home / 21,398.01-29,530.62-11,966.64

Finding the Fourth Proportional to 21,398.01, 29,530.62 and 11,966.64

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Solution

The fourth proportional to 21,398.01, 29,530.62 and 11,966.64 is: 16,514.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398.01 : 29,530.62 = 11,966.64 : x
  2. Step 2: Convert to fraction form
    21,398.01/29,530.62 = 11,966.64/x
  3. Step 3: Cross multiply
    21,398.01x = 29,530.62 × 11,966.64
  4. Step 4: Simplify right side
    21,398.01x = 353,382,298.52
  5. Step 5: Solve for x
    x = 353,382,298.52/21,398.01
  6. Step 6: Final answer
    x = 16,514.73

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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.