Home / 31,179.78-46,772.04-10,403.28

Finding the Fourth Proportional to 31,179.78, 46,772.04 and 10,403.28

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Solution

The fourth proportional to 31,179.78, 46,772.04 and 10,403.28 is: 15,605.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,179.78 : 46,772.04 = 10,403.28 : x
  2. Step 2: Convert to fraction form
    31,179.78/46,772.04 = 10,403.28/x
  3. Step 3: Cross multiply
    31,179.78x = 46,772.04 × 10,403.28
  4. Step 4: Simplify right side
    31,179.78x = 486,582,628.29
  5. Step 5: Solve for x
    x = 486,582,628.29/31,179.78
  6. Step 6: Final answer
    x = 15,605.71

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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.