Home / 27,311.38-37,689.74-15,374.82

Finding the Fourth Proportional to 27,311.38, 37,689.74 and 15,374.82

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Solution

The fourth proportional to 27,311.38, 37,689.74 and 15,374.82 is: 21,217.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,311.38 : 37,689.74 = 15,374.82 : x
  2. Step 2: Convert to fraction form
    27,311.38/37,689.74 = 15,374.82/x
  3. Step 3: Cross multiply
    27,311.38x = 37,689.74 × 15,374.82
  4. Step 4: Simplify right side
    27,311.38x = 579,472,968.35
  5. Step 5: Solve for x
    x = 579,472,968.35/27,311.38
  6. Step 6: Final answer
    x = 21,217.27

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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.