Home / 30,757.90-46,136.88-8,571.34

Finding the Fourth Proportional to 30,757.90, 46,136.88 and 8,571.34

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Solution

The fourth proportional to 30,757.90, 46,136.88 and 8,571.34 is: 12,857.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,757.90 : 46,136.88 = 8,571.34 : x
  2. Step 2: Convert to fraction form
    30,757.90/46,136.88 = 8,571.34/x
  3. Step 3: Cross multiply
    30,757.90x = 46,136.88 × 8,571.34
  4. Step 4: Simplify right side
    30,757.90x = 395,454,885.02
  5. Step 5: Solve for x
    x = 395,454,885.02/30,757.90
  6. Step 6: Final answer
    x = 12,857.02

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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.