Home / 27,321.71-37,702.94-15,221.91

Finding the Fourth Proportional to 27,321.71, 37,702.94 and 15,221.91

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Solution

The fourth proportional to 27,321.71, 37,702.94 and 15,221.91 is: 21,005.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,321.71 : 37,702.94 = 15,221.91 : x
  2. Step 2: Convert to fraction form
    27,321.71/37,702.94 = 15,221.91/x
  3. Step 3: Cross multiply
    27,321.71x = 37,702.94 × 15,221.91
  4. Step 4: Simplify right side
    27,321.71x = 573,910,759.42
  5. Step 5: Solve for x
    x = 573,910,759.42/27,321.71
  6. Step 6: Final answer
    x = 21,005.67

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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.