Home / 22,429.20-33,716.70-19,221.60

Finding the Fourth Proportional to 22,429.20, 33,716.70 and 19,221.60

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Solution

The fourth proportional to 22,429.20, 33,716.70 and 19,221.60 is: 28,894.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,429.20 : 33,716.70 = 19,221.60 : x
  2. Step 2: Convert to fraction form
    22,429.20/33,716.70 = 19,221.60/x
  3. Step 3: Cross multiply
    22,429.20x = 33,716.70 × 19,221.60
  4. Step 4: Simplify right side
    22,429.20x = 648,088,920.72
  5. Step 5: Solve for x
    x = 648,088,920.72/22,429.20
  6. Step 6: Final answer
    x = 28,894.87

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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.