Home / 27,884.92-38,481.18-15,309.64

Finding the Fourth Proportional to 27,884.92, 38,481.18 and 15,309.64

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Solution

The fourth proportional to 27,884.92, 38,481.18 and 15,309.64 is: 21,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,884.92 : 38,481.18 = 15,309.64 : x
  2. Step 2: Convert to fraction form
    27,884.92/38,481.18 = 15,309.64/x
  3. Step 3: Cross multiply
    27,884.92x = 38,481.18 × 15,309.64
  4. Step 4: Simplify right side
    27,884.92x = 589,133,012.58
  5. Step 5: Solve for x
    x = 589,133,012.58/27,884.92
  6. Step 6: Final answer
    x = 21,127.30

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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.