Home / 27,311.65-37,689.98-15,375.02

Finding the Fourth Proportional to 27,311.65, 37,689.98 and 15,375.02

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Solution

The fourth proportional to 27,311.65, 37,689.98 and 15,375.02 is: 21,217.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,311.65 : 37,689.98 = 15,375.02 : x
  2. Step 2: Convert to fraction form
    27,311.65/37,689.98 = 15,375.02/x
  3. Step 3: Cross multiply
    27,311.65x = 37,689.98 × 15,375.02
  4. Step 4: Simplify right side
    27,311.65x = 579,483,930.97
  5. Step 5: Solve for x
    x = 579,483,930.97/27,311.65
  6. Step 6: Final answer
    x = 21,217.47

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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.