Home / 20,400.54-30,609.60-11,047.25

Finding the Fourth Proportional to 20,400.54, 30,609.60 and 11,047.25

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Solution

The fourth proportional to 20,400.54, 30,609.60 and 11,047.25 is: 16,575.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400.54 : 30,609.60 = 11,047.25 : x
  2. Step 2: Convert to fraction form
    20,400.54/30,609.60 = 11,047.25/x
  3. Step 3: Cross multiply
    20,400.54x = 30,609.60 × 11,047.25
  4. Step 4: Simplify right side
    20,400.54x = 338,151,750.55
  5. Step 5: Solve for x
    x = 338,151,750.55/20,400.54
  6. Step 6: Final answer
    x = 16,575.63

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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.