Home / 27,787.26-38,346.40-15,212

Finding the Fourth Proportional to 27,787.26, 38,346.40 and 15,212

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Solution

The fourth proportional to 27,787.26, 38,346.40 and 15,212 is: 20,992.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.26 : 38,346.40 = 15,212 : x
  2. Step 2: Convert to fraction form
    27,787.26/38,346.40 = 15,212/x
  3. Step 3: Cross multiply
    27,787.26x = 38,346.40 × 15,212
  4. Step 4: Simplify right side
    27,787.26x = 583,325,436.80
  5. Step 5: Solve for x
    x = 583,325,436.80/27,787.26
  6. Step 6: Final answer
    x = 20,992.55

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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.