Home / 27,468.71-37,910.30-15,531.78

Finding the Fourth Proportional to 27,468.71, 37,910.30 and 15,531.78

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Solution

The fourth proportional to 27,468.71, 37,910.30 and 15,531.78 is: 21,435.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,468.71 : 37,910.30 = 15,531.78 : x
  2. Step 2: Convert to fraction form
    27,468.71/37,910.30 = 15,531.78/x
  3. Step 3: Cross multiply
    27,468.71x = 37,910.30 × 15,531.78
  4. Step 4: Simplify right side
    27,468.71x = 588,814,361.68
  5. Step 5: Solve for x
    x = 588,814,361.68/27,468.71
  6. Step 6: Final answer
    x = 21,435.83

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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.