Home / 27,787.52-38,347.20-15,213.44

Finding the Fourth Proportional to 27,787.52, 38,347.20 and 15,213.44

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Solution

The fourth proportional to 27,787.52, 38,347.20 and 15,213.44 is: 20,994.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.52 : 38,347.20 = 15,213.44 : x
  2. Step 2: Convert to fraction form
    27,787.52/38,347.20 = 15,213.44/x
  3. Step 3: Cross multiply
    27,787.52x = 38,347.20 × 15,213.44
  4. Step 4: Simplify right side
    27,787.52x = 583,392,826.37
  5. Step 5: Solve for x
    x = 583,392,826.37/27,787.52
  6. Step 6: Final answer
    x = 20,994.78

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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.