Home / 32,120.82-48,179.75-8,427.78

Finding the Fourth Proportional to 32,120.82, 48,179.75 and 8,427.78

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Solution

The fourth proportional to 32,120.82, 48,179.75 and 8,427.78 is: 12,641.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,120.82 : 48,179.75 = 8,427.78 : x
  2. Step 2: Convert to fraction form
    32,120.82/48,179.75 = 8,427.78/x
  3. Step 3: Cross multiply
    32,120.82x = 48,179.75 × 8,427.78
  4. Step 4: Simplify right side
    32,120.82x = 406,048,291.32
  5. Step 5: Solve for x
    x = 406,048,291.32/32,120.82
  6. Step 6: Final answer
    x = 12,641.28

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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.