Home / 27,960.90-38,585.75-15,214.47

Finding the Fourth Proportional to 27,960.90, 38,585.75 and 15,214.47

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Solution

The fourth proportional to 27,960.90, 38,585.75 and 15,214.47 is: 20,995.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960.90 : 38,585.75 = 15,214.47 : x
  2. Step 2: Convert to fraction form
    27,960.90/38,585.75 = 15,214.47/x
  3. Step 3: Cross multiply
    27,960.90x = 38,585.75 × 15,214.47
  4. Step 4: Simplify right side
    27,960.90x = 587,061,659.73
  5. Step 5: Solve for x
    x = 587,061,659.73/27,960.90
  6. Step 6: Final answer
    x = 20,995.81

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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.