Home / 31,334.31-47,007.54-9,147.87

Finding the Fourth Proportional to 31,334.31, 47,007.54 and 9,147.87

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Solution

The fourth proportional to 31,334.31, 47,007.54 and 9,147.87 is: 13,723.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,334.31 : 47,007.54 = 9,147.87 : x
  2. Step 2: Convert to fraction form
    31,334.31/47,007.54 = 9,147.87/x
  3. Step 3: Cross multiply
    31,334.31x = 47,007.54 × 9,147.87
  4. Step 4: Simplify right side
    31,334.31x = 430,018,864.94
  5. Step 5: Solve for x
    x = 430,018,864.94/31,334.31
  6. Step 6: Final answer
    x = 13,723.58

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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.