Home / 27,720.40-41,580.60-27,428.80

Finding the Fourth Proportional to 27,720.40, 41,580.60 and 27,428.80

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Solution

The fourth proportional to 27,720.40, 41,580.60 and 27,428.80 is: 41,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,720.40 : 41,580.60 = 27,428.80 : x
  2. Step 2: Convert to fraction form
    27,720.40/41,580.60 = 27,428.80/x
  3. Step 3: Cross multiply
    27,720.40x = 41,580.60 × 27,428.80
  4. Step 4: Simplify right side
    27,720.40x = 1,140,505,961.28
  5. Step 5: Solve for x
    x = 1,140,505,961.28/27,720.40
  6. Step 6: Final answer
    x = 41,143.20

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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.