Home / 20,261.61-30,383.46-9,167.85

Finding the Fourth Proportional to 20,261.61, 30,383.46 and 9,167.85

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Solution

The fourth proportional to 20,261.61, 30,383.46 and 9,167.85 is: 13,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.61 : 30,383.46 = 9,167.85 : x
  2. Step 2: Convert to fraction form
    20,261.61/30,383.46 = 9,167.85/x
  3. Step 3: Cross multiply
    20,261.61x = 30,383.46 × 9,167.85
  4. Step 4: Simplify right side
    20,261.61x = 278,551,003.76
  5. Step 5: Solve for x
    x = 278,551,003.76/20,261.61
  6. Step 6: Final answer
    x = 13,747.72

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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.