Home / 27,311.50-37,690.59-15,375.28

Finding the Fourth Proportional to 27,311.50, 37,690.59 and 15,375.28

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Solution

The fourth proportional to 27,311.50, 37,690.59 and 15,375.28 is: 21,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,311.50 : 37,690.59 = 15,375.28 : x
  2. Step 2: Convert to fraction form
    27,311.50/37,690.59 = 15,375.28/x
  3. Step 3: Cross multiply
    27,311.50x = 37,690.59 × 15,375.28
  4. Step 4: Simplify right side
    27,311.50x = 579,503,186.16
  5. Step 5: Solve for x
    x = 579,503,186.16/27,311.50
  6. Step 6: Final answer
    x = 21,218.28

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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.