Home / 38,111.90-57,173.38-11,818.76

Finding the Fourth Proportional to 38,111.90, 57,173.38 and 11,818.76

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Solution

The fourth proportional to 38,111.90, 57,173.38 and 11,818.76 is: 17,729.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,111.90 : 57,173.38 = 11,818.76 : x
  2. Step 2: Convert to fraction form
    38,111.90/57,173.38 = 11,818.76/x
  3. Step 3: Cross multiply
    38,111.90x = 57,173.38 × 11,818.76
  4. Step 4: Simplify right side
    38,111.90x = 675,718,141.20
  5. Step 5: Solve for x
    x = 675,718,141.20/38,111.90
  6. Step 6: Final answer
    x = 17,729.85

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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.