Home / 20,043.86-27,661.91-11,091.74

Finding the Fourth Proportional to 20,043.86, 27,661.91 and 11,091.74

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Solution

The fourth proportional to 20,043.86, 27,661.91 and 11,091.74 is: 15,307.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.86 : 27,661.91 = 11,091.74 : x
  2. Step 2: Convert to fraction form
    20,043.86/27,661.91 = 11,091.74/x
  3. Step 3: Cross multiply
    20,043.86x = 27,661.91 × 11,091.74
  4. Step 4: Simplify right side
    20,043.86x = 306,818,519.86
  5. Step 5: Solve for x
    x = 306,818,519.86/20,043.86
  6. Step 6: Final answer
    x = 15,307.36

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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.