Home / 27,971.92-38,601.25-15,225.15

Finding the Fourth Proportional to 27,971.92, 38,601.25 and 15,225.15

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Solution

The fourth proportional to 27,971.92, 38,601.25 and 15,225.15 is: 21,010.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,971.92 : 38,601.25 = 15,225.15 : x
  2. Step 2: Convert to fraction form
    27,971.92/38,601.25 = 15,225.15/x
  3. Step 3: Cross multiply
    27,971.92x = 38,601.25 × 15,225.15
  4. Step 4: Simplify right side
    27,971.92x = 587,709,821.44
  5. Step 5: Solve for x
    x = 587,709,821.44/27,971.92
  6. Step 6: Final answer
    x = 21,010.71

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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.