Home / 27,817.75-38,388.50-16,639.75

Finding the Fourth Proportional to 27,817.75, 38,388.50 and 16,639.75

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Solution

The fourth proportional to 27,817.75, 38,388.50 and 16,639.75 is: 22,962.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,817.75 : 38,388.50 = 16,639.75 : x
  2. Step 2: Convert to fraction form
    27,817.75/38,388.50 = 16,639.75/x
  3. Step 3: Cross multiply
    27,817.75x = 38,388.50 × 16,639.75
  4. Step 4: Simplify right side
    27,817.75x = 638,775,042.88
  5. Step 5: Solve for x
    x = 638,775,042.88/27,817.75
  6. Step 6: Final answer
    x = 22,962.86

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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.