Home / 30,542.10-45,800.85-12,761.12

Finding the Fourth Proportional to 30,542.10, 45,800.85 and 12,761.12

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Solution

The fourth proportional to 30,542.10, 45,800.85 and 12,761.12 is: 19,136.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,542.10 : 45,800.85 = 12,761.12 : x
  2. Step 2: Convert to fraction form
    30,542.10/45,800.85 = 12,761.12/x
  3. Step 3: Cross multiply
    30,542.10x = 45,800.85 × 12,761.12
  4. Step 4: Simplify right side
    30,542.10x = 584,469,913.95
  5. Step 5: Solve for x
    x = 584,469,913.95/30,542.10
  6. Step 6: Final answer
    x = 19,136.53

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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.