Home / 20,092.37-27,726.48-11,139.80

Finding the Fourth Proportional to 20,092.37, 27,726.48 and 11,139.80

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Solution

The fourth proportional to 20,092.37, 27,726.48 and 11,139.80 is: 15,372.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,092.37 : 27,726.48 = 11,139.80 : x
  2. Step 2: Convert to fraction form
    20,092.37/27,726.48 = 11,139.80/x
  3. Step 3: Cross multiply
    20,092.37x = 27,726.48 × 11,139.80
  4. Step 4: Simplify right side
    20,092.37x = 308,867,303.27
  5. Step 5: Solve for x
    x = 308,867,303.27/20,092.37
  6. Step 6: Final answer
    x = 15,372.37

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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.