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Finding the Fourth Proportional to 27,833.88, 38,418.84 and 15,903.84

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Solution

The fourth proportional to 27,833.88, 38,418.84 and 15,903.84 is: 21,951.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,833.88 : 38,418.84 = 15,903.84 : x
  2. Step 2: Convert to fraction form
    27,833.88/38,418.84 = 15,903.84/x
  3. Step 3: Cross multiply
    27,833.88x = 38,418.84 × 15,903.84
  4. Step 4: Simplify right side
    27,833.88x = 611,007,084.35
  5. Step 5: Solve for x
    x = 611,007,084.35/27,833.88
  6. Step 6: Final answer
    x = 21,951.92

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Similar ratio
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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.