Home / 21,277.08-31,882.82-11,406.42

Finding the Fourth Proportional to 21,277.08, 31,882.82 and 11,406.42

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Solution

The fourth proportional to 21,277.08, 31,882.82 and 11,406.42 is: 17,092.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.08 : 31,882.82 = 11,406.42 : x
  2. Step 2: Convert to fraction form
    21,277.08/31,882.82 = 11,406.42/x
  3. Step 3: Cross multiply
    21,277.08x = 31,882.82 × 11,406.42
  4. Step 4: Simplify right side
    21,277.08x = 363,668,778.67
  5. Step 5: Solve for x
    x = 363,668,778.67/21,277.08
  6. Step 6: Final answer
    x = 17,092.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.