Home / 20,635.67-30,925.78-11,261.64

Finding the Fourth Proportional to 20,635.67, 30,925.78 and 11,261.64

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Solution

The fourth proportional to 20,635.67, 30,925.78 and 11,261.64 is: 16,877.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.67 : 30,925.78 = 11,261.64 : x
  2. Step 2: Convert to fraction form
    20,635.67/30,925.78 = 11,261.64/x
  3. Step 3: Cross multiply
    20,635.67x = 30,925.78 × 11,261.64
  4. Step 4: Simplify right side
    20,635.67x = 348,274,972.93
  5. Step 5: Solve for x
    x = 348,274,972.93/20,635.67
  6. Step 6: Final answer
    x = 16,877.33

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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.