Home / 49,240-67,953.66-28,021.24

Finding the Fourth Proportional to 49,240, 67,953.66 and 28,021.24

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Solution

The fourth proportional to 49,240, 67,953.66 and 28,021.24 is: 38,670.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,240 : 67,953.66 = 28,021.24 : x
  2. Step 2: Convert to fraction form
    49,240/67,953.66 = 28,021.24/x
  3. Step 3: Cross multiply
    49,240x = 67,953.66 × 28,021.24
  4. Step 4: Simplify right side
    49,240x = 1,904,145,815.74
  5. Step 5: Solve for x
    x = 1,904,145,815.74/49,240
  6. Step 6: Final answer
    x = 38,670.71

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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.