Home / 30,146.25-45,193.85-11,415.96

Finding the Fourth Proportional to 30,146.25, 45,193.85 and 11,415.96

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Solution

The fourth proportional to 30,146.25, 45,193.85 and 11,415.96 is: 17,114.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,146.25 : 45,193.85 = 11,415.96 : x
  2. Step 2: Convert to fraction form
    30,146.25/45,193.85 = 11,415.96/x
  3. Step 3: Cross multiply
    30,146.25x = 45,193.85 × 11,415.96
  4. Step 4: Simplify right side
    30,146.25x = 515,930,957.88
  5. Step 5: Solve for x
    x = 515,930,957.88/30,146.25
  6. Step 6: Final answer
    x = 17,114.27

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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.