Home / 30,372.72-45,555.46-8,187.83

Finding the Fourth Proportional to 30,372.72, 45,555.46 and 8,187.83

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Solution

The fourth proportional to 30,372.72, 45,555.46 and 8,187.83 is: 12,280.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,372.72 : 45,555.46 = 8,187.83 : x
  2. Step 2: Convert to fraction form
    30,372.72/45,555.46 = 8,187.83/x
  3. Step 3: Cross multiply
    30,372.72x = 45,555.46 × 8,187.83
  4. Step 4: Simplify right side
    30,372.72x = 373,000,586.94
  5. Step 5: Solve for x
    x = 373,000,586.94/30,372.72
  6. Step 6: Final answer
    x = 12,280.78

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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.