Home / 21,962.44-30,308.17-11,890.88

Finding the Fourth Proportional to 21,962.44, 30,308.17 and 11,890.88

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Solution

The fourth proportional to 21,962.44, 30,308.17 and 11,890.88 is: 16,409.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,962.44 : 30,308.17 = 11,890.88 : x
  2. Step 2: Convert to fraction form
    21,962.44/30,308.17 = 11,890.88/x
  3. Step 3: Cross multiply
    21,962.44x = 30,308.17 × 11,890.88
  4. Step 4: Simplify right side
    21,962.44x = 360,390,660.95
  5. Step 5: Solve for x
    x = 360,390,660.95/21,962.44
  6. Step 6: Final answer
    x = 16,409.41

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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.