Home / 38,154.30-57,240.15-11,861.70

Finding the Fourth Proportional to 38,154.30, 57,240.15 and 11,861.70

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Solution

The fourth proportional to 38,154.30, 57,240.15 and 11,861.70 is: 17,795.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,154.30 : 57,240.15 = 11,861.70 : x
  2. Step 2: Convert to fraction form
    38,154.30/57,240.15 = 11,861.70/x
  3. Step 3: Cross multiply
    38,154.30x = 57,240.15 × 11,861.70
  4. Step 4: Simplify right side
    38,154.30x = 678,965,487.26
  5. Step 5: Solve for x
    x = 678,965,487.26/38,154.30
  6. Step 6: Final answer
    x = 17,795.25

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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.