Home / 20,648.48-30,961.38-9,549.05

Finding the Fourth Proportional to 20,648.48, 30,961.38 and 9,549.05

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Solution

The fourth proportional to 20,648.48, 30,961.38 and 9,549.05 is: 14,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.48 : 30,961.38 = 9,549.05 : x
  2. Step 2: Convert to fraction form
    20,648.48/30,961.38 = 9,549.05/x
  3. Step 3: Cross multiply
    20,648.48x = 30,961.38 × 9,549.05
  4. Step 4: Simplify right side
    20,648.48x = 295,651,765.69
  5. Step 5: Solve for x
    x = 295,651,765.69/20,648.48
  6. Step 6: Final answer
    x = 14,318.33

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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.