Home / 30,101.82-45,130.86-12,576.66

Finding the Fourth Proportional to 30,101.82, 45,130.86 and 12,576.66

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Solution

The fourth proportional to 30,101.82, 45,130.86 and 12,576.66 is: 18,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,101.82 : 45,130.86 = 12,576.66 : x
  2. Step 2: Convert to fraction form
    30,101.82/45,130.86 = 12,576.66/x
  3. Step 3: Cross multiply
    30,101.82x = 45,130.86 × 12,576.66
  4. Step 4: Simplify right side
    30,101.82x = 567,595,481.73
  5. Step 5: Solve for x
    x = 567,595,481.73/30,101.82
  6. Step 6: Final answer
    x = 18,855.85

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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.