Home / 22,292.20-33,438.30-20,909.80

Finding the Fourth Proportional to 22,292.20, 33,438.30 and 20,909.80

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Solution

The fourth proportional to 22,292.20, 33,438.30 and 20,909.80 is: 31,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,292.20 : 33,438.30 = 20,909.80 : x
  2. Step 2: Convert to fraction form
    22,292.20/33,438.30 = 20,909.80/x
  3. Step 3: Cross multiply
    22,292.20x = 33,438.30 × 20,909.80
  4. Step 4: Simplify right side
    22,292.20x = 699,188,165.34
  5. Step 5: Solve for x
    x = 699,188,165.34/22,292.20
  6. Step 6: Final answer
    x = 31,364.70

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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.