Home / 22,520.50-33,780.48-21,150.39

Finding the Fourth Proportional to 22,520.50, 33,780.48 and 21,150.39

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Solution

The fourth proportional to 22,520.50, 33,780.48 and 21,150.39 is: 31,725.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,520.50 : 33,780.48 = 21,150.39 : x
  2. Step 2: Convert to fraction form
    22,520.50/33,780.48 = 21,150.39/x
  3. Step 3: Cross multiply
    22,520.50x = 33,780.48 × 21,150.39
  4. Step 4: Simplify right side
    22,520.50x = 714,470,326.39
  5. Step 5: Solve for x
    x = 714,470,326.39/22,520.50
  6. Step 6: Final answer
    x = 31,725.33

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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.