Home / 20,062.37-27,686.05-11,109.87

Finding the Fourth Proportional to 20,062.37, 27,686.05 and 11,109.87

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Solution

The fourth proportional to 20,062.37, 27,686.05 and 11,109.87 is: 15,331.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,062.37 : 27,686.05 = 11,109.87 : x
  2. Step 2: Convert to fraction form
    20,062.37/27,686.05 = 11,109.87/x
  3. Step 3: Cross multiply
    20,062.37x = 27,686.05 × 11,109.87
  4. Step 4: Simplify right side
    20,062.37x = 307,588,416.31
  5. Step 5: Solve for x
    x = 307,588,416.31/20,062.37
  6. Step 6: Final answer
    x = 15,331.61

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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.