Home / 31,147.88-46,721.81-10,371.38

Finding the Fourth Proportional to 31,147.88, 46,721.81 and 10,371.38

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Solution

The fourth proportional to 31,147.88, 46,721.81 and 10,371.38 is: 15,557.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,147.88 : 46,721.81 = 10,371.38 : x
  2. Step 2: Convert to fraction form
    31,147.88/46,721.81 = 10,371.38/x
  3. Step 3: Cross multiply
    31,147.88x = 46,721.81 × 10,371.38
  4. Step 4: Simplify right side
    31,147.88x = 484,569,438.12
  5. Step 5: Solve for x
    x = 484,569,438.12/31,147.88
  6. Step 6: Final answer
    x = 15,557.06

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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.