Home / 45,241.32-67,843.72-13,641.60

Finding the Fourth Proportional to 45,241.32, 67,843.72 and 13,641.60

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Solution

The fourth proportional to 45,241.32, 67,843.72 and 13,641.60 is: 20,456.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,241.32 : 67,843.72 = 13,641.60 : x
  2. Step 2: Convert to fraction form
    45,241.32/67,843.72 = 13,641.60/x
  3. Step 3: Cross multiply
    45,241.32x = 67,843.72 × 13,641.60
  4. Step 4: Simplify right side
    45,241.32x = 925,496,890.75
  5. Step 5: Solve for x
    x = 925,496,890.75/45,241.32
  6. Step 6: Final answer
    x = 20,456.89

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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.