Home / 27,164.70-37,538.91-20,438.73

Finding the Fourth Proportional to 27,164.70, 37,538.91 and 20,438.73

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Solution

The fourth proportional to 27,164.70, 37,538.91 and 20,438.73 is: 28,244.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,164.70 : 37,538.91 = 20,438.73 : x
  2. Step 2: Convert to fraction form
    27,164.70/37,538.91 = 20,438.73/x
  3. Step 3: Cross multiply
    27,164.70x = 37,538.91 × 20,438.73
  4. Step 4: Simplify right side
    27,164.70x = 767,247,645.98
  5. Step 5: Solve for x
    x = 767,247,645.98/27,164.70
  6. Step 6: Final answer
    x = 28,244.29

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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.