Home / 27,878.96-38,419.86-27,366.55

Finding the Fourth Proportional to 27,878.96, 38,419.86 and 27,366.55

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Solution

The fourth proportional to 27,878.96, 38,419.86 and 27,366.55 is: 37,713.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,878.96 : 38,419.86 = 27,366.55 : x
  2. Step 2: Convert to fraction form
    27,878.96/38,419.86 = 27,366.55/x
  3. Step 3: Cross multiply
    27,878.96x = 38,419.86 × 27,366.55
  4. Step 4: Simplify right side
    27,878.96x = 1,051,419,019.68
  5. Step 5: Solve for x
    x = 1,051,419,019.68/27,878.96
  6. Step 6: Final answer
    x = 37,713.71

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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.