Home / 27,877.36-41,814.48-20,388.60

Finding the Fourth Proportional to 27,877.36, 41,814.48 and 20,388.60

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Solution

The fourth proportional to 27,877.36, 41,814.48 and 20,388.60 is: 30,581.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,877.36 : 41,814.48 = 20,388.60 : x
  2. Step 2: Convert to fraction form
    27,877.36/41,814.48 = 20,388.60/x
  3. Step 3: Cross multiply
    27,877.36x = 41,814.48 × 20,388.60
  4. Step 4: Simplify right side
    27,877.36x = 852,538,706.93
  5. Step 5: Solve for x
    x = 852,538,706.93/27,877.36
  6. Step 6: Final answer
    x = 30,581.76

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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.