Home / 31,698.11-43,776.08-27,428.68

Finding the Fourth Proportional to 31,698.11, 43,776.08 and 27,428.68

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Solution

The fourth proportional to 31,698.11, 43,776.08 and 27,428.68 is: 37,879.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,698.11 : 43,776.08 = 27,428.68 : x
  2. Step 2: Convert to fraction form
    31,698.11/43,776.08 = 27,428.68/x
  3. Step 3: Cross multiply
    31,698.11x = 43,776.08 × 27,428.68
  4. Step 4: Simplify right side
    31,698.11x = 1,200,720,049.11
  5. Step 5: Solve for x
    x = 1,200,720,049.11/31,698.11
  6. Step 6: Final answer
    x = 37,879.86

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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.