Home / 25,286.94-37,953.71-12,815.81

Finding the Fourth Proportional to 25,286.94, 37,953.71 and 12,815.81

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Solution

The fourth proportional to 25,286.94, 37,953.71 and 12,815.81 is: 19,235.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,286.94 : 37,953.71 = 12,815.81 : x
  2. Step 2: Convert to fraction form
    25,286.94/37,953.71 = 12,815.81/x
  3. Step 3: Cross multiply
    25,286.94x = 37,953.71 × 12,815.81
  4. Step 4: Simplify right side
    25,286.94x = 486,407,663.08
  5. Step 5: Solve for x
    x = 486,407,663.08/25,286.94
  6. Step 6: Final answer
    x = 19,235.53

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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.