Home / 37,091.76-51,190.92-21,178.50

Finding the Fourth Proportional to 37,091.76, 51,190.92 and 21,178.50

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Solution

The fourth proportional to 37,091.76, 51,190.92 and 21,178.50 is: 29,228.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,091.76 : 51,190.92 = 21,178.50 : x
  2. Step 2: Convert to fraction form
    37,091.76/51,190.92 = 21,178.50/x
  3. Step 3: Cross multiply
    37,091.76x = 51,190.92 × 21,178.50
  4. Step 4: Simplify right side
    37,091.76x = 1,084,146,899.22
  5. Step 5: Solve for x
    x = 1,084,146,899.22/37,091.76
  6. Step 6: Final answer
    x = 29,228.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.