Home / 27,756.54-38,318.82-18,694.86

Finding the Fourth Proportional to 27,756.54, 38,318.82 and 18,694.86

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Solution

The fourth proportional to 27,756.54, 38,318.82 and 18,694.86 is: 25,808.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,756.54 : 38,318.82 = 18,694.86 : x
  2. Step 2: Convert to fraction form
    27,756.54/38,318.82 = 18,694.86/x
  3. Step 3: Cross multiply
    27,756.54x = 38,318.82 × 18,694.86
  4. Step 4: Simplify right side
    27,756.54x = 716,364,975.27
  5. Step 5: Solve for x
    x = 716,364,975.27/27,756.54
  6. Step 6: Final answer
    x = 25,808.87

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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.