Home / 27,829.22-38,403.62-15,081.85

Finding the Fourth Proportional to 27,829.22, 38,403.62 and 15,081.85

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Solution

The fourth proportional to 27,829.22, 38,403.62 and 15,081.85 is: 20,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,829.22 : 38,403.62 = 15,081.85 : x
  2. Step 2: Convert to fraction form
    27,829.22/38,403.62 = 15,081.85/x
  3. Step 3: Cross multiply
    27,829.22x = 38,403.62 × 15,081.85
  4. Step 4: Simplify right side
    27,829.22x = 579,197,449.43
  5. Step 5: Solve for x
    x = 579,197,449.43/27,829.22
  6. Step 6: Final answer
    x = 20,812.56

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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.