Home / 31,212.87-46,812.33-9,021.30

Finding the Fourth Proportional to 31,212.87, 46,812.33 and 9,021.30

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Solution

The fourth proportional to 31,212.87, 46,812.33 and 9,021.30 is: 13,529.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,212.87 : 46,812.33 = 9,021.30 : x
  2. Step 2: Convert to fraction form
    31,212.87/46,812.33 = 9,021.30/x
  3. Step 3: Cross multiply
    31,212.87x = 46,812.33 × 9,021.30
  4. Step 4: Simplify right side
    31,212.87x = 422,308,072.63
  5. Step 5: Solve for x
    x = 422,308,072.63/31,212.87
  6. Step 6: Final answer
    x = 13,529.93

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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.