Home / 27,787.88-38,347.28-15,212.63

Finding the Fourth Proportional to 27,787.88, 38,347.28 and 15,212.63

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Solution

The fourth proportional to 27,787.88, 38,347.28 and 15,212.63 is: 20,993.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.88 : 38,347.28 = 15,212.63 : x
  2. Step 2: Convert to fraction form
    27,787.88/38,347.28 = 15,212.63/x
  3. Step 3: Cross multiply
    27,787.88x = 38,347.28 × 15,212.63
  4. Step 4: Simplify right side
    27,787.88x = 583,362,714.35
  5. Step 5: Solve for x
    x = 583,362,714.35/27,787.88
  6. Step 6: Final answer
    x = 20,993.43

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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.