Home / 20,055.51-27,676.20-11,102.49

Finding the Fourth Proportional to 20,055.51, 27,676.20 and 11,102.49

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Solution

The fourth proportional to 20,055.51, 27,676.20 and 11,102.49 is: 15,321.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.51 : 27,676.20 = 11,102.49 : x
  2. Step 2: Convert to fraction form
    20,055.51/27,676.20 = 11,102.49/x
  3. Step 3: Cross multiply
    20,055.51x = 27,676.20 × 11,102.49
  4. Step 4: Simplify right side
    20,055.51x = 307,274,733.74
  5. Step 5: Solve for x
    x = 307,274,733.74/20,055.51
  6. Step 6: Final answer
    x = 15,321.21

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Double scale
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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.