Home / 30,179.55-45,274.09-9,116.97

Finding the Fourth Proportional to 30,179.55, 45,274.09 and 9,116.97

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Solution

The fourth proportional to 30,179.55, 45,274.09 and 9,116.97 is: 13,676.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,179.55 : 45,274.09 = 9,116.97 : x
  2. Step 2: Convert to fraction form
    30,179.55/45,274.09 = 9,116.97/x
  3. Step 3: Cross multiply
    30,179.55x = 45,274.09 × 9,116.97
  4. Step 4: Simplify right side
    30,179.55x = 412,762,520.31
  5. Step 5: Solve for x
    x = 412,762,520.31/30,179.55
  6. Step 6: Final answer
    x = 13,676.89

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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.