Home / 27,908.49-38,523.83-18,480.09

Finding the Fourth Proportional to 27,908.49, 38,523.83 and 18,480.09

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Solution

The fourth proportional to 27,908.49, 38,523.83 and 18,480.09 is: 25,509.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,908.49 : 38,523.83 = 18,480.09 : x
  2. Step 2: Convert to fraction form
    27,908.49/38,523.83 = 18,480.09/x
  3. Step 3: Cross multiply
    27,908.49x = 38,523.83 × 18,480.09
  4. Step 4: Simplify right side
    27,908.49x = 711,923,753.14
  5. Step 5: Solve for x
    x = 711,923,753.14/27,908.49
  6. Step 6: Final answer
    x = 25,509.22

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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.