Home / 30,622.38-45,933.82-8,436.98

Finding the Fourth Proportional to 30,622.38, 45,933.82 and 8,436.98

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Solution

The fourth proportional to 30,622.38, 45,933.82 and 8,436.98 is: 12,655.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,622.38 : 45,933.82 = 8,436.98 : x
  2. Step 2: Convert to fraction form
    30,622.38/45,933.82 = 8,436.98/x
  3. Step 3: Cross multiply
    30,622.38x = 45,933.82 × 8,436.98
  4. Step 4: Simplify right side
    30,622.38x = 387,542,720.66
  5. Step 5: Solve for x
    x = 387,542,720.66/30,622.38
  6. Step 6: Final answer
    x = 12,655.54

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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.