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Finding the Fourth Proportional to 27,444.80, 37,847.84 and 19,940.80

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Solution

The fourth proportional to 27,444.80, 37,847.84 and 19,940.80 is: 27,499.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,444.80 : 37,847.84 = 19,940.80 : x
  2. Step 2: Convert to fraction form
    27,444.80/37,847.84 = 19,940.80/x
  3. Step 3: Cross multiply
    27,444.80x = 37,847.84 × 19,940.80
  4. Step 4: Simplify right side
    27,444.80x = 754,716,207.87
  5. Step 5: Solve for x
    x = 754,716,207.87/27,444.80
  6. Step 6: Final answer
    x = 27,499.42

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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.