Home / 31,868.39-47,809.58-15,205.52

Finding the Fourth Proportional to 31,868.39, 47,809.58 and 15,205.52

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Solution

The fourth proportional to 31,868.39, 47,809.58 and 15,205.52 is: 22,811.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,868.39 : 47,809.58 = 15,205.52 : x
  2. Step 2: Convert to fraction form
    31,868.39/47,809.58 = 15,205.52/x
  3. Step 3: Cross multiply
    31,868.39x = 47,809.58 × 15,205.52
  4. Step 4: Simplify right side
    31,868.39x = 726,969,568.38
  5. Step 5: Solve for x
    x = 726,969,568.38/31,868.39
  6. Step 6: Final answer
    x = 22,811.62

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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.