Home / 27,618.13-41,428.55-7,899.60

Finding the Fourth Proportional to 27,618.13, 41,428.55 and 7,899.60

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Solution

The fourth proportional to 27,618.13, 41,428.55 and 7,899.60 is: 11,849.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,618.13 : 41,428.55 = 7,899.60 : x
  2. Step 2: Convert to fraction form
    27,618.13/41,428.55 = 7,899.60/x
  3. Step 3: Cross multiply
    27,618.13x = 41,428.55 × 7,899.60
  4. Step 4: Simplify right side
    27,618.13x = 327,268,973.58
  5. Step 5: Solve for x
    x = 327,268,973.58/27,618.13
  6. Step 6: Final answer
    x = 11,849.79

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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.