Home / 20,055.73-27,675.93-11,103.07

Finding the Fourth Proportional to 20,055.73, 27,675.93 and 11,103.07

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Solution

The fourth proportional to 20,055.73, 27,675.93 and 11,103.07 is: 15,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.73 : 27,675.93 = 11,103.07 : x
  2. Step 2: Convert to fraction form
    20,055.73/27,675.93 = 11,103.07/x
  3. Step 3: Cross multiply
    20,055.73x = 27,675.93 × 11,103.07
  4. Step 4: Simplify right side
    20,055.73x = 307,287,788.11
  5. Step 5: Solve for x
    x = 307,287,788.11/20,055.73
  6. Step 6: Final answer
    x = 15,321.70

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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.