Home / 38,156.70-57,234.78-11,861.40

Finding the Fourth Proportional to 38,156.70, 57,234.78 and 11,861.40

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Solution

The fourth proportional to 38,156.70, 57,234.78 and 11,861.40 is: 17,792.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,156.70 : 57,234.78 = 11,861.40 : x
  2. Step 2: Convert to fraction form
    38,156.70/57,234.78 = 11,861.40/x
  3. Step 3: Cross multiply
    38,156.70x = 57,234.78 × 11,861.40
  4. Step 4: Simplify right side
    38,156.70x = 678,884,619.49
  5. Step 5: Solve for x
    x = 678,884,619.49/38,156.70
  6. Step 6: Final answer
    x = 17,792.02

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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.