Home / 21,954.20-30,296.58-11,882.42

Finding the Fourth Proportional to 21,954.20, 30,296.58 and 11,882.42

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Solution

The fourth proportional to 21,954.20, 30,296.58 and 11,882.42 is: 16,397.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954.20 : 30,296.58 = 11,882.42 : x
  2. Step 2: Convert to fraction form
    21,954.20/30,296.58 = 11,882.42/x
  3. Step 3: Cross multiply
    21,954.20x = 30,296.58 × 11,882.42
  4. Step 4: Simplify right side
    21,954.20x = 359,996,536.64
  5. Step 5: Solve for x
    x = 359,996,536.64/21,954.20
  6. Step 6: Final answer
    x = 16,397.62

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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.