Home / 31,287.94-46,938.04-13,757.72

Finding the Fourth Proportional to 31,287.94, 46,938.04 and 13,757.72

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Solution

The fourth proportional to 31,287.94, 46,938.04 and 13,757.72 is: 20,639.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.94 : 46,938.04 = 13,757.72 : x
  2. Step 2: Convert to fraction form
    31,287.94/46,938.04 = 13,757.72/x
  3. Step 3: Cross multiply
    31,287.94x = 46,938.04 × 13,757.72
  4. Step 4: Simplify right side
    31,287.94x = 645,760,318.60
  5. Step 5: Solve for x
    x = 645,760,318.60/31,287.94
  6. Step 6: Final answer
    x = 20,639.27

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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.