Home / 20,348.70-30,482.82-15,945.54

Finding the Fourth Proportional to 20,348.70, 30,482.82 and 15,945.54

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Solution

The fourth proportional to 20,348.70, 30,482.82 and 15,945.54 is: 23,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.70 : 30,482.82 = 15,945.54 : x
  2. Step 2: Convert to fraction form
    20,348.70/30,482.82 = 15,945.54/x
  3. Step 3: Cross multiply
    20,348.70x = 30,482.82 × 15,945.54
  4. Step 4: Simplify right side
    20,348.70x = 486,065,025.62
  5. Step 5: Solve for x
    x = 486,065,025.62/20,348.70
  6. Step 6: Final answer
    x = 23,886.79

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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.