Home / 27,840.96-38,419.44-15,265.44

Finding the Fourth Proportional to 27,840.96, 38,419.44 and 15,265.44

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Solution

The fourth proportional to 27,840.96, 38,419.44 and 15,265.44 is: 21,065.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,840.96 : 38,419.44 = 15,265.44 : x
  2. Step 2: Convert to fraction form
    27,840.96/38,419.44 = 15,265.44/x
  3. Step 3: Cross multiply
    27,840.96x = 38,419.44 × 15,265.44
  4. Step 4: Simplify right side
    27,840.96x = 586,489,656.15
  5. Step 5: Solve for x
    x = 586,489,656.15/27,840.96
  6. Step 6: Final answer
    x = 21,065.71

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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.