Home / 30,747.94-46,121.10-8,560.42

Finding the Fourth Proportional to 30,747.94, 46,121.10 and 8,560.42

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Solution

The fourth proportional to 30,747.94, 46,121.10 and 8,560.42 is: 12,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,747.94 : 46,121.10 = 8,560.42 : x
  2. Step 2: Convert to fraction form
    30,747.94/46,121.10 = 8,560.42/x
  3. Step 3: Cross multiply
    30,747.94x = 46,121.10 × 8,560.42
  4. Step 4: Simplify right side
    30,747.94x = 394,815,839.46
  5. Step 5: Solve for x
    x = 394,815,839.46/30,747.94
  6. Step 6: Final answer
    x = 12,840.40

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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.