Home / 38,112.77-57,174.69-11,819.63

Finding the Fourth Proportional to 38,112.77, 57,174.69 and 11,819.63

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Solution

The fourth proportional to 38,112.77, 57,174.69 and 11,819.63 is: 17,731.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,112.77 : 57,174.69 = 11,819.63 : x
  2. Step 2: Convert to fraction form
    38,112.77/57,174.69 = 11,819.63/x
  3. Step 3: Cross multiply
    38,112.77x = 57,174.69 × 11,819.63
  4. Step 4: Simplify right side
    38,112.77x = 675,783,681.16
  5. Step 5: Solve for x
    x = 675,783,681.16/38,112.77
  6. Step 6: Final answer
    x = 17,731.16

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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.