Home / 27,623.20-38,118.68-15,684.96

Finding the Fourth Proportional to 27,623.20, 38,118.68 and 15,684.96

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Solution

The fourth proportional to 27,623.20, 38,118.68 and 15,684.96 is: 21,644.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,623.20 : 38,118.68 = 15,684.96 : x
  2. Step 2: Convert to fraction form
    27,623.20/38,118.68 = 15,684.96/x
  3. Step 3: Cross multiply
    27,623.20x = 38,118.68 × 15,684.96
  4. Step 4: Simplify right side
    27,623.20x = 597,889,971.05
  5. Step 5: Solve for x
    x = 597,889,971.05/27,623.20
  6. Step 6: Final answer
    x = 21,644.49

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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.