Home / 27,787.22-38,346.36-15,211.97

Finding the Fourth Proportional to 27,787.22, 38,346.36 and 15,211.97

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Solution

The fourth proportional to 27,787.22, 38,346.36 and 15,211.97 is: 20,992.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.22 : 38,346.36 = 15,211.97 : x
  2. Step 2: Convert to fraction form
    27,787.22/38,346.36 = 15,211.97/x
  3. Step 3: Cross multiply
    27,787.22x = 38,346.36 × 15,211.97
  4. Step 4: Simplify right side
    27,787.22x = 583,323,687.04
  5. Step 5: Solve for x
    x = 583,323,687.04/27,787.22
  6. Step 6: Final answer
    x = 20,992.52

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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.