Home / 21,996.90-33,000.21-10,909.62

Finding the Fourth Proportional to 21,996.90, 33,000.21 and 10,909.62

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Solution

The fourth proportional to 21,996.90, 33,000.21 and 10,909.62 is: 16,366.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996.90 : 33,000.21 = 10,909.62 : x
  2. Step 2: Convert to fraction form
    21,996.90/33,000.21 = 10,909.62/x
  3. Step 3: Cross multiply
    21,996.90x = 33,000.21 × 10,909.62
  4. Step 4: Simplify right side
    21,996.90x = 360,019,751.02
  5. Step 5: Solve for x
    x = 360,019,751.02/21,996.90
  6. Step 6: Final answer
    x = 16,366.84

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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.