Home / 31,286.74-46,949.55-12,818.74

Finding the Fourth Proportional to 31,286.74, 46,949.55 and 12,818.74

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Solution

The fourth proportional to 31,286.74, 46,949.55 and 12,818.74 is: 19,236.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,286.74 : 46,949.55 = 12,818.74 : x
  2. Step 2: Convert to fraction form
    31,286.74/46,949.55 = 12,818.74/x
  3. Step 3: Cross multiply
    31,286.74x = 46,949.55 × 12,818.74
  4. Step 4: Simplify right side
    31,286.74x = 601,834,074.57
  5. Step 5: Solve for x
    x = 601,834,074.57/31,286.74
  6. Step 6: Final answer
    x = 19,236.07

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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.