Home / 39,951.07-55,115.71-28,022.20

Finding the Fourth Proportional to 39,951.07, 55,115.71 and 28,022.20

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Solution

The fourth proportional to 39,951.07, 55,115.71 and 28,022.20 is: 38,658.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,951.07 : 55,115.71 = 28,022.20 : x
  2. Step 2: Convert to fraction form
    39,951.07/55,115.71 = 28,022.20/x
  3. Step 3: Cross multiply
    39,951.07x = 55,115.71 × 28,022.20
  4. Step 4: Simplify right side
    39,951.07x = 1,544,463,308.65
  5. Step 5: Solve for x
    x = 1,544,463,308.65/39,951.07
  6. Step 6: Final answer
    x = 38,658.87

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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.