Home / 35,390.78-53,049.15-13,194.50

Finding the Fourth Proportional to 35,390.78, 53,049.15 and 13,194.50

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Solution

The fourth proportional to 35,390.78, 53,049.15 and 13,194.50 is: 19,777.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,390.78 : 53,049.15 = 13,194.50 : x
  2. Step 2: Convert to fraction form
    35,390.78/53,049.15 = 13,194.50/x
  3. Step 3: Cross multiply
    35,390.78x = 53,049.15 × 13,194.50
  4. Step 4: Simplify right side
    35,390.78x = 699,957,009.68
  5. Step 5: Solve for x
    x = 699,957,009.68/35,390.78
  6. Step 6: Final answer
    x = 19,777.95

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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.