Home / 38,178.72-57,273.48-11,886.12

Finding the Fourth Proportional to 38,178.72, 57,273.48 and 11,886.12

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Solution

The fourth proportional to 38,178.72, 57,273.48 and 11,886.12 is: 17,830.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,178.72 : 57,273.48 = 11,886.12 : x
  2. Step 2: Convert to fraction form
    38,178.72/57,273.48 = 11,886.12/x
  3. Step 3: Cross multiply
    38,178.72x = 57,273.48 × 11,886.12
  4. Step 4: Simplify right side
    38,178.72x = 680,759,456.10
  5. Step 5: Solve for x
    x = 680,759,456.10/38,178.72
  6. Step 6: Final answer
    x = 17,830.86

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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.