Home / 27,221.03-40,838.49-13,187.78

Finding the Fourth Proportional to 27,221.03, 40,838.49 and 13,187.78

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Solution

The fourth proportional to 27,221.03, 40,838.49 and 13,187.78 is: 19,785.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,221.03 : 40,838.49 = 13,187.78 : x
  2. Step 2: Convert to fraction form
    27,221.03/40,838.49 = 13,187.78/x
  3. Step 3: Cross multiply
    27,221.03x = 40,838.49 × 13,187.78
  4. Step 4: Simplify right side
    27,221.03x = 538,568,817.46
  5. Step 5: Solve for x
    x = 538,568,817.46/27,221.03
  6. Step 6: Final answer
    x = 19,785.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.