Home / 31,483.25-47,235.80-13,965.38

Finding the Fourth Proportional to 31,483.25, 47,235.80 and 13,965.38

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Solution

The fourth proportional to 31,483.25, 47,235.80 and 13,965.38 is: 20,952.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,483.25 : 47,235.80 = 13,965.38 : x
  2. Step 2: Convert to fraction form
    31,483.25/47,235.80 = 13,965.38/x
  3. Step 3: Cross multiply
    31,483.25x = 47,235.80 × 13,965.38
  4. Step 4: Simplify right side
    31,483.25x = 659,665,660.43
  5. Step 5: Solve for x
    x = 659,665,660.43/31,483.25
  6. Step 6: Final answer
    x = 20,952.91

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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.