Home / 31,128.25-46,692.78-10,351.75

Finding the Fourth Proportional to 31,128.25, 46,692.78 and 10,351.75

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Solution

The fourth proportional to 31,128.25, 46,692.78 and 10,351.75 is: 15,527.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,128.25 : 46,692.78 = 10,351.75 : x
  2. Step 2: Convert to fraction form
    31,128.25/46,692.78 = 10,351.75/x
  3. Step 3: Cross multiply
    31,128.25x = 46,692.78 × 10,351.75
  4. Step 4: Simplify right side
    31,128.25x = 483,351,985.37
  5. Step 5: Solve for x
    x = 483,351,985.37/31,128.25
  6. Step 6: Final answer
    x = 15,527.76

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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.