Home / 49,653.38-74,479.41-12,213.79

Finding the Fourth Proportional to 49,653.38, 74,479.41 and 12,213.79

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Solution

The fourth proportional to 49,653.38, 74,479.41 and 12,213.79 is: 18,320.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,653.38 : 74,479.41 = 12,213.79 : x
  2. Step 2: Convert to fraction form
    49,653.38/74,479.41 = 12,213.79/x
  3. Step 3: Cross multiply
    49,653.38x = 74,479.41 × 12,213.79
  4. Step 4: Simplify right side
    49,653.38x = 909,675,686.87
  5. Step 5: Solve for x
    x = 909,675,686.87/49,653.38
  6. Step 6: Final answer
    x = 18,320.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.