Home / 27,624.20-38,120.06-15,685.96

Finding the Fourth Proportional to 27,624.20, 38,120.06 and 15,685.96

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Solution

The fourth proportional to 27,624.20, 38,120.06 and 15,685.96 is: 21,645.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,624.20 : 38,120.06 = 15,685.96 : x
  2. Step 2: Convert to fraction form
    27,624.20/38,120.06 = 15,685.96/x
  3. Step 3: Cross multiply
    27,624.20x = 38,120.06 × 15,685.96
  4. Step 4: Simplify right side
    27,624.20x = 597,949,736.36
  5. Step 5: Solve for x
    x = 597,949,736.36/27,624.20
  6. Step 6: Final answer
    x = 21,645.87

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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.