Home / 27,311.88-37,690.43-15,375.32

Finding the Fourth Proportional to 27,311.88, 37,690.43 and 15,375.32

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Solution

The fourth proportional to 27,311.88, 37,690.43 and 15,375.32 is: 21,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,311.88 : 37,690.43 = 15,375.32 : x
  2. Step 2: Convert to fraction form
    27,311.88/37,690.43 = 15,375.32/x
  3. Step 3: Cross multiply
    27,311.88x = 37,690.43 × 15,375.32
  4. Step 4: Simplify right side
    27,311.88x = 579,502,156.86
  5. Step 5: Solve for x
    x = 579,502,156.86/27,311.88
  6. Step 6: Final answer
    x = 21,217.95

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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.