Home / 27,963.24-38,589.28-15,388

Finding the Fourth Proportional to 27,963.24, 38,589.28 and 15,388

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Solution

The fourth proportional to 27,963.24, 38,589.28 and 15,388 is: 21,235.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,963.24 : 38,589.28 = 15,388 : x
  2. Step 2: Convert to fraction form
    27,963.24/38,589.28 = 15,388/x
  3. Step 3: Cross multiply
    27,963.24x = 38,589.28 × 15,388
  4. Step 4: Simplify right side
    27,963.24x = 593,811,840.64
  5. Step 5: Solve for x
    x = 593,811,840.64/27,963.24
  6. Step 6: Final answer
    x = 21,235.44

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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.