Home / 20,589,542.76-28,413,602.76-11,422,185.60

Finding the Fourth Proportional to 20,589,542.76, 28,413,602.76 and 11,422,185.60

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Solution

The fourth proportional to 20,589,542.76, 28,413,602.76 and 11,422,185.60 is: 15,762,634.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589,542.76 : 28,413,602.76 = 11,422,185.60 : x
  2. Step 2: Convert to fraction form
    20,589,542.76/28,413,602.76 = 11,422,185.60/x
  3. Step 3: Cross multiply
    20,589,542.76x = 28,413,602.76 × 11,422,185.60
  4. Step 4: Simplify right side
    20,589,542.76x = 324,545,444,289,392.25
  5. Step 5: Solve for x
    x = 324,545,444,289,392.25/20,589,542.76
  6. Step 6: Final answer
    x = 15,762,634.85

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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.