Home / 42,459.96-63,662.94-20,261.64

Finding the Fourth Proportional to 42,459.96, 63,662.94 and 20,261.64

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Solution

The fourth proportional to 42,459.96, 63,662.94 and 20,261.64 is: 30,379.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,459.96 : 63,662.94 = 20,261.64 : x
  2. Step 2: Convert to fraction form
    42,459.96/63,662.94 = 20,261.64/x
  3. Step 3: Cross multiply
    42,459.96x = 63,662.94 × 20,261.64
  4. Step 4: Simplify right side
    42,459.96x = 1,289,915,571.62
  5. Step 5: Solve for x
    x = 1,289,915,571.62/42,459.96
  6. Step 6: Final answer
    x = 30,379.58

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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.