Home / 20,055.48-27,676.80-11,103.81

Finding the Fourth Proportional to 20,055.48, 27,676.80 and 11,103.81

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Solution

The fourth proportional to 20,055.48, 27,676.80 and 11,103.81 is: 15,323.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.48 : 27,676.80 = 11,103.81 : x
  2. Step 2: Convert to fraction form
    20,055.48/27,676.80 = 11,103.81/x
  3. Step 3: Cross multiply
    20,055.48x = 27,676.80 × 11,103.81
  4. Step 4: Simplify right side
    20,055.48x = 307,317,928.61
  5. Step 5: Solve for x
    x = 307,317,928.61/20,055.48
  6. Step 6: Final answer
    x = 15,323.39

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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.