Home / 31,539.66-47,315.31-9,049.41

Finding the Fourth Proportional to 31,539.66, 47,315.31 and 9,049.41

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Solution

The fourth proportional to 31,539.66, 47,315.31 and 9,049.41 is: 13,575.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539.66 : 47,315.31 = 9,049.41 : x
  2. Step 2: Convert to fraction form
    31,539.66/47,315.31 = 9,049.41/x
  3. Step 3: Cross multiply
    31,539.66x = 47,315.31 × 9,049.41
  4. Step 4: Simplify right side
    31,539.66x = 428,175,639.47
  5. Step 5: Solve for x
    x = 428,175,639.47/31,539.66
  6. Step 6: Final answer
    x = 13,575.78

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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.