Home / 21,922.68-30,253.43-11,851.09

Finding the Fourth Proportional to 21,922.68, 30,253.43 and 11,851.09

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Solution

The fourth proportional to 21,922.68, 30,253.43 and 11,851.09 is: 16,354.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,922.68 : 30,253.43 = 11,851.09 : x
  2. Step 2: Convert to fraction form
    21,922.68/30,253.43 = 11,851.09/x
  3. Step 3: Cross multiply
    21,922.68x = 30,253.43 × 11,851.09
  4. Step 4: Simplify right side
    21,922.68x = 358,536,121.74
  5. Step 5: Solve for x
    x = 358,536,121.74/21,922.68
  6. Step 6: Final answer
    x = 16,354.58

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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.