Home / 27,861.41-38,449.49-15,924.48

Finding the Fourth Proportional to 27,861.41, 38,449.49 and 15,924.48

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Solution

The fourth proportional to 27,861.41, 38,449.49 and 15,924.48 is: 21,976.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,861.41 : 38,449.49 = 15,924.48 : x
  2. Step 2: Convert to fraction form
    27,861.41/38,449.49 = 15,924.48/x
  3. Step 3: Cross multiply
    27,861.41x = 38,449.49 × 15,924.48
  4. Step 4: Simplify right side
    27,861.41x = 612,288,054.89
  5. Step 5: Solve for x
    x = 612,288,054.89/27,861.41
  6. Step 6: Final answer
    x = 21,976.21

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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.