Home / 20,449.72-30,675.26-5,657.39

Finding the Fourth Proportional to 20,449.72, 30,675.26 and 5,657.39

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Solution

The fourth proportional to 20,449.72, 30,675.26 and 5,657.39 is: 8,486.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.72 : 30,675.26 = 5,657.39 : x
  2. Step 2: Convert to fraction form
    20,449.72/30,675.26 = 5,657.39/x
  3. Step 3: Cross multiply
    20,449.72x = 30,675.26 × 5,657.39
  4. Step 4: Simplify right side
    20,449.72x = 173,542,020.39
  5. Step 5: Solve for x
    x = 173,542,020.39/20,449.72
  6. Step 6: Final answer
    x = 8,486.28

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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.