Home / 27,108.80-37,422.84-20,396.94

Finding the Fourth Proportional to 27,108.80, 37,422.84 and 20,396.94

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Solution

The fourth proportional to 27,108.80, 37,422.84 and 20,396.94 is: 28,157.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,108.80 : 37,422.84 = 20,396.94 : x
  2. Step 2: Convert to fraction form
    27,108.80/37,422.84 = 20,396.94/x
  3. Step 3: Cross multiply
    27,108.80x = 37,422.84 × 20,396.94
  4. Step 4: Simplify right side
    27,108.80x = 763,311,422.11
  5. Step 5: Solve for x
    x = 763,311,422.11/27,108.80
  6. Step 6: Final answer
    x = 28,157.33

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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.